SLI / Standard Lithium Ltd. - SEC-Einreichungen, Jahresbericht, Proxy Statement

Standard Lithium Ltd.
US ˙ NYSEAM ˙ CA8536061010

Basisstatistiken
LEI 549300LA4BSHAKT4SL33
CIK 1537137
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to Standard Lithium Ltd.
SEC Filings (Chronological Order)
Auf dieser Seite finden Sie eine vollständige, chronologische Liste der SEC-Einreichungen, mit Ausnahme der Eigentumseinreichungen, die wir an anderer Stelle bereitstellen.
May 28, 2026 EX-99.1

GaFORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.1 GaFORM 51-102F3 MATERIAL CHANGE REPORT Item 1. Name and Address of Company Standard Lithium Ltd. Suite 1625 – 1075 West Georgia Street Vancouver, BC V6E 3C9 Item 2. Date of Material Change May 21, 2026 Item 3. News Release The news release was disseminated by Globe Newswire on May 21, 2026, and was subsequently filed on SEDAR+. Item 4. Summary of Material Change Smackover Lithium, a p

May 28, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2026 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addre

May 28, 2026 EX-99.2

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.2 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1. Name and Address of Company Standard Lithium Ltd. Suite 1625 – 1075 West Georgia Street Vancouver, BC V6E 3C9 Item 2. Date of Material Change May 26, 2026 Item 3. News Release The news release was disseminated by Globe Newswire on May 26, 2026, and was subsequently filed on SEDAR+. Item 4. Summary of Material Change Smackover Lithium, a par

May 26, 2026 EX-99.1

Smackover Lithium Announces the Award of Last Key Construction Contract for the South West Arkansas Project Ahead of Final Investment Decision

EXHIBIT 99.1 Smackover Lithium Announces the Award of Last Key Construction Contract for the South West Arkansas Project Ahead of Final Investment Decision All figures are in US dollars unless otherwise stated. LEWISVILLE, Ark., May 26, 2026 (GLOBE NEWSWIRE) - Smackover Lithium, a partnership between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor,

May 26, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 21, 2026 EX-99.3

Standard Lithium Ltd. (the “Company”) Annual General and Special Meeting July 16, 2026 at 10:00 a.m. (Pacific Time) https://virtual-meetings.tsxtrust.com/1924 (password: standard2026) (the “Meeting”) Proxy Voting – Guidelines and Conditions 1. THIS P

Exhibit 99.3 Standard Lithium Ltd. (the “Company”) Annual General and Special Meeting July 16, 2026 at 10:00 a.m. (Pacific Time) https://virtual-meetings.tsxtrust.com/1924 (password: standard2026) (the “Meeting”) Proxy Voting – Guidelines and Conditions 1. THIS PROXY IS SOLICITED BY OR ON BEHALF OF THE MANAGEMENT OF THE COMPANY. 2. THIS PROXY SHOULD BE READ IN CONJUNCTION WITH THE MEETING MATERIAL

May 21, 2026 EX-99.5

Standard Lithium Ltd. Request for Financial Statements

Exhibit 99.5 Standard Lithium Ltd. Request for Financial Statements 2026 In accordance with National Instrument 51-102 – Continuous Disclosure Obligations, registered and beneficial shareholders may elect annually to receive a copy of our annual financial statements and corresponding management discussion and analysis (“MD&A”) or interim financial statements and the corresponding MD&A, or both. If

May 21, 2026 EX-99.1

STANDARD LITHIUM LTD. NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS MANAGEMENT INFORMATION CIRCULAR Dated: May 20, 2026 Meeting Details

Exhibit 99.1 STANDARD LITHIUM LTD. NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS AND MANAGEMENT INFORMATION CIRCULAR Dated: May 20, 2026 Meeting Details Date: July 16, 2026 Time: 10:00 a.m. (Pacific time) Place: Virtual STANDARD LITHIUM LTD. 1625 – 1075 West Georgia Street Vancouver, BC, Canada, V6E 3C9 NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING NOTICE IS HEREBY GIVEN that the Ann

May 21, 2026 EX-99.1

Smackover Lithium Announces the Award of Well Field EPCM Contract for the South West Arkansas Project Ahead of Final Investment Decision

EXHIBIT 99.1 Smackover Lithium Announces the Award of Well Field EPCM Contract for the South West Arkansas Project Ahead of Final Investment Decision All figures are in US dollars unless otherwise stated. LEWISVILLE, Ark., May 21, 2026 (GLOBE NEWSWIRE) - Smackover Lithium, a partnership between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor, throu

May 21, 2026 EX-99.4

STANDARD LITHIUM LTD. ANNUAL AND SPECIAL MEETING THURSDAY, JULY 16, 2026 AT 10:00 A.M. PDT JULY 14, 2026 2 E 2 1 OF 1 2601 14TH AVENUE MARKHAM, ON L3R 0H9 https://virtual-meetings.tsxtrust.com /1924 password: standard2026 STANDARD LITHIUM LTD. 1625 -

Exhibit 99.4 STANDARD LITHIUM LTD. ANNUAL AND SPECIAL MEETING THURSDAY, JULY 16, 2026 AT 10:00 A.M. PDT FOR HOLDERS AS OF MAY 20, 2026 853606101 JULY 14, 2026 2 E * ISSUER CONFIRMATION COPY - INFO ONLY * David Park, Salah Gamoudi, Natasha Vlajnic 1 To Set the Number of Directors at nine (9). RECOMMENDATION: FOR 2A Election of Director - Robert Cross RECOMMENDATION: FOR 2B Election of Director - An

May 21, 2026 EX-99.2

NOTICE AND ACCESS NOTIFICATION TO SHAREHOLDERS ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON JULY 16, 2026

Exhibit 99.2 NOTICE AND ACCESS NOTIFICATION TO SHAREHOLDERS ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON JULY 16, 2026 You are receiving this notification because Standard Lithium Ltd. (the “Company”) has opted to use the “notice and access” system for delivery of meeting materials to its shareholders in respect of its annual general and special meeting of shareholders to be he

May 21, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2026 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Ad

May 21, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 14, 2026 EX-99.1

Smackover Lithium Concludes National Environmental Policy Act Review for South West Arkansas Project with Finding of No Significant Impact

EXHIBIT 99.1 Smackover Lithium Concludes National Environmental Policy Act Review for South West Arkansas Project with Finding of No Significant Impact All figures are in US dollars unless otherwise stated. LEWISVILLE, Ark., May 14, 2026 (GLOBE NEWSWIRE) - Smackover Lithium, a partnership between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor, thr

May 14, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 11, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 11, 2026 EX-99.1

Standard Lithium Reports First Quarter 2026 Results

EXHIBIT 99.1 Standard Lithium Reports First Quarter 2026 Results Signed First Binding Customer Offtake Agreement with Trafigura Achieved Major Operational Milestones at Demonstration Plant Highlighted by 1 Million Barrels of Processed Smackover Brine and 15,000 DLE Cycles over 6 Years Remains On Track for a Final Investment Decision and Beginning Construction at the South West Arkansas Project (th

May 11, 2026 EX-99.2

Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED MARCH 31, 2026

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED MARCH 31, 2026 STANDARD LITHIUM LTD. Management's Discussion and Analysis For the Three Months Ended March 31, 2026 and 2025 introduction The following management’s discussion and analysis ("MD&A") was prepared by management of Standard Lithium Ltd. based on information available as of May 8, 2026 and should be reviewed i

May 11, 2026 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three months ended March 31, 2026 and 2025

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three months ended March 31, 2026 and 2025 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As of March 31, 2026 and December 31, 2025 (Expressed in thousands of US dollars - unaudited) Note March 31, 2026 December 31, 2025 ASSETS Current assets Cash $ 141,013

May 11, 2026 EX-99.3

Form 52-109F2 Certification of Interim Filings Full Certificate

Exhibit 99.3 Form 52-109F2 Certification of Interim Filings Full Certificate I, David Park, Chief Executive Officer of Standard Lithium Ltd., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Standard Lithium Ltd. (the "issuer") for the interim period ended March 31, 2026. 2. No misrepresentations: Based on my knowl

May 11, 2026 EX-99.4

Form 52-109F2 Certification of Interim Filings Full Certificate

Exhibit 99.4 Form 52-109F2 Certification of Interim Filings Full Certificate I, Salah Gamoudi, Chief Financial Officer of Standard Lithium Ltd., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Standard Lithium Ltd. (the "issuer") for the interim period ended March 31, 2026. 2. No misrepresentations: Based on my kn

May 11, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May, 2026 Commission File Number 001‑40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

April 22, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

April 22, 2026 EX-99.1

Standard Lithium Reaches Major Operational Milestones at Arkansas Demonstration Plant

EXHIBIT 99.1 Standard Lithium Reaches Major Operational Milestones at Arkansas Demonstration Plant Processed 1 million barrels of brine, pumped in real-time from the Smackover Formation Completed 15,000 cycles of DLE using the same process to be implemented at the South West Arkansas Project 6 years and 340,000 man hours of operation without a safety incident VANCOUVER, British Columbia, April 22,

April 10, 2026 EX-99.1

STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE

Exhibit 99.1 STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE VANCOUVER, BC, April 10, 2026 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, today provided a quarterly update with respect to the Company’s previously announced “at-the-market” equity program (the “ATM Program”) launched on August 8, 2025. T

April 10, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of April 2026 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Add

March 30, 2026 EX-99.13

CONSENT OF RICHARD DELONG

Exhibit 99.13 CONSENT OF RICHARD DELONG The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study Arkansas, United States" dated September 3, 2025, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, and any

March 30, 2026 EX-99.9

CONSENT OF PATRICIO PINTO GALLARDO

Exhibit 99.9 CONSENT OF PATRICIO PINTO GALLARDO The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study Arkansas, United States" dated September 3, 2025, which is included in, or incorporated by reference into, the Annual Report on Form 40-F,

March 30, 2026 EX-99.4

Certificate of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.4 Certificate of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, David Park, certify that: 1. I have reviewed this annual report on Form 40-F of Standard Lithium Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the c

March 30, 2026 EX-99.14

CONSENT OF ABINASH MOHARANA

Exhibit 99.14 CONSENT OF ABINASH MOHARANA The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "NI 43-101 Technical Report: Maiden Inferred Resource Estimate for Standard Lithium Ltd.’s Franklin Project, Hopkins, Franklin and Titus Counties, Texas, United States" dated September 24, 2025, which is included in, or incorporated

March 30, 2026 EX-99.12

CONSENT OF THOMAS WYNN ROGERS

Exhibit 99.12 CONSENT OF THOMAS WYNN ROGERS The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study Arkansas, United States" dated September 3, 2025, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, and

March 30, 2026 40-F

A. Undertaking B. Consent to Service of Process

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 or ☒ ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the year ended December 31, 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Exact name of Registrant as specified in its

March 30, 2026 EX-99.3

Consolidated Financial Statements (Expressed in US dollars) For the year ended December 31, 2025, the six month fiscal period ended December 31, 2024 and the year ended June 30, 2024

Exhibit 99.3 Consolidated Financial Statements (Expressed in US dollars) For the year ended December 31, 2025, the six month fiscal period ended December 31, 2024 and the year ended June 30, 2024 1 Report of Independent Registered Public Accounting Firm To the Board of Directors and Shareholders of Standard Lithium Ltd. Opinion on the Financial Statements We have audited the accompanying consolida

March 30, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 30, 2026 EX-99.5

Certificate of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 Certificate of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Salah Gamoudi, certify that: 1. I have reviewed this annual report on Form 40-F of Standard Lithium Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of th

March 30, 2026 EX-99.6

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the annual report of Standard Lithium Ltd. (the "Company") on Form 40-F for the year ended December 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, David Park, Chief Exe

March 30, 2026 EX-99.15

CONSENT OF MAREK DWORZANOWSKI

Exhibit 99.15 CONSENT OF MAREK DWORZANOWSKI The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "NI 43-101 Technical Report: Maiden Inferred Resource Estimate for Standard Lithium Ltd.’s Franklin Project, Hopkins, Franklin and Titus Counties, Texas, United States" dated September 24, 2025, which is included in, or incorporat

March 30, 2026 EX-99.8

Consent of Independent Registered Public Accounting Firm

Exhibit 99.8 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference in this Annual Report on Form 40-F for the year ended December 31, 2025 of Standard Lithium Ltd. of our report dated March 27, 2026, relating to the consolidated financial statements, which appears in Exhibit 99.3 incorporated by reference in this Annual Report on Form 40-F. We

March 30, 2026 EX-99.1

Standard Lithium Reports Fourth Quarter and Full Year 2025 Results

EXHIBIT 99.1 Standard Lithium Reports Fourth Quarter and Full Year 2025 Results Signed First Binding Customer Offtake Agreement with Trafigura Received Indications of Interest for Over $1 Billion in Project Finance Provides an Update on Plans for a Final Investment Decision (“FID”) on the South West Arkansas Project (the “SWA Project”) VANCOUVER, British Columbia, March 30, 2026 (GLOBE NEWSWIRE) -

March 30, 2026 EX-99.11

CONSENT OF HAAS AND COBB PETROLEUM CONSULTANTS, LLC

Exhibit 99.11 CONSENT OF HAAS AND COBB PETROLEUM CONSULTANTS, LLC The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Reports titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study Arkansas, United States" dated September 3, 2025 and "NI 43-101 Technical Report: Maiden Inferred Resource Estimate for

March 30, 2026 EX-99.10

CONSENT OF ALEKSANDAR SPASOJEVIC

Exhibit 99.10 CONSENT OF ALEKSANDAR SPASOJEVIC The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study Arkansas, United States" dated September 3, 2025, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, a

March 30, 2026 EX-99.7

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the annual report of Standard Lithium Ltd. (the "Company") on Form 40-F for the year ended December 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Salah Gamoudi, Chief

March 30, 2026 EX-99.2

Management's Discussion and Analysis FOR THE YEAR ENDED DECEMBER 31, 2025, THE SIX MONTH FISCAL PERIOD ENDED DECEMBER 31, 2024 AND THE YEAR ENDED JUNE 30, 2024

Exhibit 99.2 Management's Discussion and Analysis FOR THE YEAR ENDED DECEMBER 31, 2025, THE SIX MONTH FISCAL PERIOD ENDED DECEMBER 31, 2024 AND THE YEAR ENDED JUNE 30, 2024 STANDARD LITHIUM LTD. Management's Discussion and Analysis For the Year Ended December 31, 2025 introduction The following management's discussion and analysis ("MD&A") was prepared by management based on information available

March 30, 2026 EX-99.1

STANDARD LITHIUM LTD. ANNUAL INFORMATION FORM for the Fiscal Year ended December 31, 2025 Dated March 27, 2026 CORPORATE OFFICE Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, V6E 3C9 REGISTERED OFFICE Suite 2200, 885 West Georgia S

Table of Contents Exhibit 99.1 STANDARD LITHIUM LTD. ANNUAL INFORMATION FORM for the Fiscal Year ended December 31, 2025 Dated March 27, 2026 CORPORATE OFFICE Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, V6E 3C9 REGISTERED OFFICE Suite 2200, 885 West Georgia Street Vancouver, British Columbia, V6C 3E8 Table of Contents TABLE OF CONTENTS PRELIMINARY NOTES AND CAUTIONARY STATEME

March 25, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of March 2026 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Add

March 25, 2026 EX-99.2

Lithium CARBONATE OFFTAKE AGREEMENT MARCH 6, 2026 TRAFIGURA TRADING LLC (Purchaser) SWA LITHIUM LLC (Seller)

Exhibit 99.2 Lithium CARBONATE OFFTAKE AGREEMENT MARCH 6, 2026 TRAFIGURA TRADING LLC (Purchaser) SWA LITHIUM LLC (Seller) CONTENTS Section Page 1. Interpretation 1 2. Term 8 3. Sale and Purchase; PRE-CPD Exclusivity 8 4. Delivery Schedules; Purchase Orders 8 5. Quotational Period 9 6. Pricing 9 7. Invoicing 10 8. Delivery, Title, and Risk 10 9. Specification of Product 12 10. Weight Determination,

March 25, 2026 EX-99.3

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.3 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1. Name and Address of Company Standard Lithium Ltd. (the “Company”) Suite 1625 – 1075 West Georgia Street Vancouver, BC V6E 3C9 Item 2. Date of Material Change March 9, 2026 Item 3. News Release The news release was disseminated by Globe Newswire on March 9, 2026, and was subsequently filed on SEDAR+. Item 4. Summary of Material Change The Co

March 25, 2026 EX-99.1

STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE

Exhibit 99.1 STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE VANCOUVER, BC, January 9, 2026 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, today provided a quarterly update with respect to the Company’s previously announced “at-the-market” equity program (the “ATM Program”) launched on August 8, 2025.

March 16, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 16, 2026 EX-99.1

Standard Lithium Bolsters National Security Focus by Adding Expert Critical Minerals and Defense Advisors

EXHIBIT 99.1 Standard Lithium Bolsters National Security Focus by Adding Expert Critical Minerals and Defense Advisors VANCOUVER, British Columbia, March 16, 2026 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI), a leading near-commercial lithium company, today announced the engagements of The Walsh Group, LLC, led by its Principal, Lieutenan

March 9, 2026 EX-99.1

Smackover Lithium Signs First Binding Customer Offtake Agreement for the South West Arkansas Project

EXHIBIT 99.1 Smackover Lithium Signs First Binding Customer Offtake Agreement for the South West Arkansas Project All figures are in US dollars unless otherwise stated. LEWISVILLE, Ark., March 09, 2026 (GLOBE NEWSWIRE) - Smackover Lithium, a joint venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor, through subsidiaries of Equino

March 9, 2026 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2026 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

December 9, 2025 EX-99.1

Smackover Lithium Receives Indications of Interest for Over $1 Billion in Project Finance for the SWA Project

EXHIBIT 99.1 Smackover Lithium Receives Indications of Interest for Over $1 Billion in Project Finance for the SWA Project All figures are in US dollars unless otherwise stated. LEWISVILLE, Ark., Dec. 09, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor, is providing an update

December 9, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2025 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

November 18, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

November 18, 2025 EX-99.1

Standard Lithium to Participate in Multiple Upcoming Investor Conferences

EXHIBIT 99.1 Standard Lithium to Participate in Multiple Upcoming Investor Conferences VANCOUVER, British Columbia, Nov. 18, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI), a leading near-commercial lithium company, will have senior leadership participating in multiple upcoming investor conferences. The Company will be participating in

November 10, 2025 EX-99.1

Standard Lithium Reports Third Quarter 2025 Results

EXHIBIT 99.1 Standard Lithium Reports Third Quarter 2025 Results Released positive Definitive Feasibility Study (“DFS”) for the South West Arkansas Project (“SWA Project”) which continues progressing towards a Final Investment Decision (“FID”) Announced Maiden Inferred Resource for the Company’s first project in East Texas (“Franklin Project”) containing the highest reported lithium-in-brine grade

November 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November, 2025 Commission File Number 001‑40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9

November 10, 2025 EX-99.2

Management’s Discussion and Analysis FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2025

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 2025 STANDARD LITHIUM LTD. Management's Discussion and Analysis For the Three and Nine Months Ended September 30, 2025 and 2024 introduction The following management’s discussion and analysis ("MD&A") was prepared by management of Standard Lithium Ltd. based on information available as of November 7

November 10, 2025 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three and nine months ended September 30, 2025 and 2024

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three and nine months ended September 30, 2025 and 2024 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As of September 30, 2025 and December 31, 2024 (Expressed in thousands of US dollars - unaudited) Note September 30, 2025 December 31, 2024 ASSETS Current

November 10, 2025 EX-99.3

Form 52-109F2 Certification of Interim Filings Full Certificate

Exhibit 99.3 Form 52-109F2 Certification of Interim Filings Full Certificate I, David Park, Chief Executive Officer of Standard Lithium Ltd., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Standard Lithium Ltd. (the "issuer") for the interim period ended September 30, 2025. 2. No misrepresentations: Based on my k

November 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

November 10, 2025 EX-99.4

Form 52-109F2 Certification of Interim Filings Full Certificate

Exhibit 99.4 Form 52-109F2 Certification of Interim Filings Full Certificate I, Salah Gamoudi, Chief Financial Officer of Standard Lithium Ltd., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Standard Lithium Ltd. (the "issuer") for the interim period ended September 30, 2025. 2. No misrepresentations: Based on m

November 5, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

November 5, 2025 EX-99.1

Smackover Lithium Files Maiden Inferred Resource for Its Franklin Project in East Texas, Containing the Highest Reported Lithium-in-Brine Grades in North America

EXHIBIT 99.1 Smackover Lithium Files Maiden Inferred Resource for Its Franklin Project in East Texas, Containing the Highest Reported Lithium-in-Brine Grades in North America LEWISVILLE, Ark., Nov. 05, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a 55:45 owned Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor (“Equinor”), a

October 30, 2025 EX-99.1

Smackover Lithium Receives Key Final Integration Approval from the Arkansas Oil and Gas Commission for South West Arkansas Project

EXHIBIT 99.1 Smackover Lithium Receives Key Final Integration Approval from the Arkansas Oil and Gas Commission for South West Arkansas Project LEWISVILLE, Ark., Oct. 30, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a 55:45 owned Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor (“Equinor”), is pleased to announce unanimous

October 30, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

October 27, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 27, 2025 EX-99.1

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.1 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1. Name and Address of Company Standard Lithium Ltd. (the “Company”) Suite 1625 – 1075 West Georgia Street Vancouver, BC V6E 3C9 Item 2. Date of Material Change October 20, 2025 Item 3. News Release The news release was disseminated by Globe Newswire on October 20, 2025, and was subsequently filed on SEDAR+. Item 4. Summary of Material Change

October 21, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 21, 2025 EX-99.1

STANDARD LITHIUM CLOSES $130 MILLION UNDERWRITTEN PUBLIC OFFERING

Exhibit 99.1 STANDARD LITHIUM CLOSES $130 MILLION UNDERWRITTEN PUBLIC OFFERING VANCOUVER, BC, October 20, 2025 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI), a leading near-commercial lithium company, has closed its previously announced underwritten public offering (the “Offering”) of 29,885,057 common shares (the “Common Shares”) at a price of US $4.35 pe

October 20, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 20, 2025 SUPPL

PROSPECTUS SUPPLEMENT dated October 16, 2025 to the Short Form Base Shelf Prospectus dated July 30, 2025

Filed Pursuant to General Instruction II.L. of Form F-10 File No. 333-289110 PROSPECTUS SUPPLEMENT dated October 16, 2025 to the Short Form Base Shelf Prospectus dated July 30, 2025 New Issue   October 16, 2025 STANDARD LITHIUM LTD. US$129,999,998 29,885,057 Common Shares This prospectus supplement (this “Prospectus Supplement”) of Standard Lithium Ltd. (the “Company” or “SLI”), together with the

October 20, 2025 EX-99.1

29,885,057 Shares STANDARD LITHIUM LTD. COMMON SHARES WITHOUT PAR VALUE UNDERWRITING AGREEMENT October 16, 2025

Exhibit 99.1 29,885,057 Shares STANDARD LITHIUM LTD. COMMON SHARES WITHOUT PAR VALUE UNDERWRITING AGREEMENT October 16, 2025 October 16, 2025 Morgan Stanley & Co. LLC Evercore Group L.L.C. c/o Morgan Stanley & Co. LLC 1585 Broadway New York, New York 10036 c/o Evercore Group L.L.C. 55 East 52nd Street New York, NY 10055 Ladies and Gentlemen: Standard Lithium Ltd., (the “Company”), a corporation in

October 20, 2025 EX-99.2

STANDARD LITHIUM PRICES UPSIZED $130 MILLION UNDERWRITTEN PUBLIC OFFERING

Exhibit 99.2 STANDARD LITHIUM PRICES UPSIZED $130 MILLION UNDERWRITTEN PUBLIC OFFERING VANCOUVER, BC, October 16, 2025 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI), a leading near-commercial lithium company, announced the pricing of its previously announced underwritten public offering (the “Offering”) of 29,885,057 common shares (the “Common Shares”) at

October 17, 2025 EX-99.1

October 16, 2025 The Future of Lithium in North America Creating a Leading U.S. Lithium Business NYSE : SLI | TSX.V : SLI A final base shelf prospectus containing important information relating to the securities described in this document has been fi

Exhibit 99.1 October 16, 2025 The Future of Lithium in North America Creating a Leading U.S. Lithium Business NYSE : SLI | TSX.V : SLI A final base shelf prospectus containing important information relating to the securities described in this document has been fi led with the securities regulatory authorities in each of the provinces and territories of Canada. A copy of the final base s hel f pros

October 17, 2025 FWP

October 16, 2025 The Future of Lithium in North America Creating a Leading U.S. Lithium Business NYSE : SLI | TSX.V : SLI A final base shelf prospectus containing important information relating to the securities described in this document has been fi

October 16, 2025 The Future of Lithium in North America Creating a Leading U.S. Lithium Business NYSE : SLI | TSX.V : SLI A final base shelf prospectus containing important information relating to the securities described in this document has been fi led with the securities regulatory authorities in each of the provinces and territories of Canada. A copy of the final base s hel f prospectus, any a

October 17, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 17, 2025 EX-99.2

STANDARD LITHIUM ANNOUNCES PROPOSED PUBLIC OFFERING OF COMMON SHARES

Exhibit 99.2 STANDARD LITHIUM ANNOUNCES PROPOSED PUBLIC OFFERING OF COMMON SHARES VANCOUVER, BC, October 16, 2025 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI), a leading near-commercial lithium company, announced that it intends to offer and sell common shares (the “Common Shares”) in an underwritten public offering of $120,000,000 (the “Offering”). The O

October 16, 2025 EX-99.4

CONSENT OF ROBERT E. WILLIAMS, JR.

Exhibit 99.4 CONSENT OF ROBERT E. WILLIAMS, JR. The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Tec

October 16, 2025 EX-99.3

CONSENT OF RANDAL M. BRUSH

Exhibit 99.3 CONSENT OF RANDAL M. BRUSH The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical R

October 16, 2025 SUPPL

SUBJECT TO COMPLETION, DATED OCTOBER 16, 2025 PRELIMINARY PROSPECTUS SUPPLEMENT dated October    , 2025 to the Short Form Base Shelf Prospectus dated July 30, 2025

Filed Pursuant to General Instruction II.L. of Form F-10 File Nos. 333-289110 The information in this prospectus supplement and the accompanying prospectus is not complete and may be changed. This prospectus supplement and the accompanying prospectus are not an offer to sell these securities and are not soliciting an offer to buy these securities in any state where the offer or sale is not permitt

October 16, 2025 EX-99.6

CONSENT OF RICHARD DELONG

Exhibit 99.6 CONSENT OF RICHARD DELONG The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Re

October 16, 2025 EX-99.1

CONSENT OF PATRICIO PINTO GALLARDO

Exhibit 99.1 CONSENT OF PATRICIO PINTO GALLARDO The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Tec

October 16, 2025 EX-99.2

CONSENT OF ALEKSANDAR SPASOJEVIC

Exhibit 99.2 CONSENT OF ALEKSANDAR SPASOJEVIC The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Techn

October 16, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 16, 2025 EX-99.5

CONSENT OF THOMAS WYNN ROGERS, JR.

Exhibit 99.5 CONSENT OF THOMAS WYNN ROGERS, JR. The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Tec

October 15, 2025 EX-99.1

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.1 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1. Name and Address of Company Standard Lithium Ltd. (the “Company”) Suite 1625 – 1075 West Georgia Street Vancouver, BC V6E 3C9 Item 2. Date of Material Change September 24, 2025 Item 3. News Release The news release was disseminated by Globe Newswire on September 24, 2025, and was subsequently filed on SEDAR+. Item 4. Summary of Material Cha

October 15, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 14, 2025 EX-99.1

Smackover Lithium Files Definitive Feasibility Study for Its South West Arkansas Project, North America’s Highest-Grade Reported Lithium Brine Reserve

EXHIBIT 99.1 Smackover Lithium Files Definitive Feasibility Study for Its South West Arkansas Project, North America’s Highest-Grade Reported Lithium Brine Reserve LEWISVILLE, Ark., Oct. 14, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a 55:45 owned Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor (“Equinor”), announced to

October 14, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

October 14, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 14, 2025 EX-99.1

Certificate of Qualified Person Patricio Pinto Gallardo, C.P.

Exhibit 99.1 Certificate of Qualified Person Patricio Pinto Gallardo, C.P. I, Patricio Pinto Gallardo, C.P., certify that I am employed as a Process Manager with Ausenco Chile Ltda. (together with Ausenco Engineering Canada ULC, “Ausenco”), with an office address of Avenida Las Condes 11283, Floor 6, Las Condes, Santiago, Chile CP 75550000. 1. This certificate applies to the technical report title

October 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of October 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

October 10, 2025 EX-99.2

FORM 51-102F3 MATERIAL CHANGE REPORT

Exhibit 99.2 FORM 51-102F3 MATERIAL CHANGE REPORT Item 1. Name and Address of Company Standard Lithium Ltd. (the “Company”) Suite 1625 – 1075 West Georgia Street Vancouver, BC V6E 3C9 Item 2. Date of Material Change September 3, 2025 Item 3. News Release The news release was disseminated by Globe Newswire on September 3, 2025, and was subsequently filed on SEDAR+. Item 4. Summary of Material Chang

October 10, 2025 EX-99.1

FORM 51-102F3 Material Change Report

Exhibit 99.1 FORM 51-102F3 Material Change Report ITEM 1 Name and Address of Company Standard Lithium Ltd. (the “Company”) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia V6E 3C9 ITEM 2 Date of Material Change August 8, 2025 ITEM 3 News Release A news release announcing the material change was disseminated on August 8, 2025 and subsequently filed on SEDAR+. ITEM 4 Summary of Mater

September 24, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V

September 24, 2025 EX-99.1

Smackover Lithium Releases Maiden Inferred Resource for its Franklin Project Comprising a Portion of Significant Brine Position in East Texas Highlighted by 2.2M tonnes of Lithium Carbonate Equivalent (“LCE”) at an average lithium grade of 668 mg/L,

EXHIBIT 99.1 Smackover Lithium Releases Maiden Inferred Resource for its Franklin Project Comprising a Portion of Significant Brine Position in East Texas Highlighted by 2.2M tonnes of Lithium Carbonate Equivalent (“LCE”) at an average lithium grade of 668 mg/L, 15.4M tonnes of potash and 2.6M tonnes of bromide at the Inferred Resource Category LEWISVILLE, Ark., Sept. 24, 2025 (GLOBE NEWSWIRE) - S

September 3, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V

September 3, 2025 EX-99.1

Smackover Lithium Announces Positive Definitive Feasibility Study Results for its South West Arkansas Project Highlighted by 20.2% Unlevered Pre-tax IRR on Initial Phase of 22,500 Tonnes per Annum of Battery-Quality Lithium Carbonate with Upgraded Mi

EXHIBIT 99.1 Smackover Lithium Announces Positive Definitive Feasibility Study Results for its South West Arkansas Project Highlighted by 20.2% Unlevered Pre-tax IRR on Initial Phase of 22,500 Tonnes per Annum of Battery-Quality Lithium Carbonate with Upgraded Mineral Resource LEWISVILLE, Ark., Sept. 03, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd

August 18, 2025 EX-99.1

Standard Lithium Expands Leadership Team with Appointment of General Counsel

EXHIBIT 99.1 Standard Lithium Expands Leadership Team with Appointment of General Counsel VANCOUVER, British Columbia, Aug. 18, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, is announcing the appointment of Michael Lutgring as General Counsel, effective August 18, 2025. “We are excite

August 18, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-405

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

August 11, 2025 EX-99.1

STANDARD LITHIUM LTD. COMMON SHARES SALES AGREEMENT

Exhibit 99.1 STANDARD LITHIUM LTD. COMMON SHARES SALES AGREEMENT August 8, 2025 Canaccord Genuity LLC One Post Office Square, 30th Floor Boston, MA 02109 Canaccord Genuity Corp. 40 Temperance Street, Suite 2100 Toronto, ON M5H 0B4 Evercore Group L.L.C. 55 East 52nd Street New York, NY 10055 To the addressees set forth above: Standard Lithium Ltd. (the “Company”), confirms its agreement (this “Agre

August 11, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Ad

August 11, 2025 EX-99.2

STANDARD LITHIUM ESTABLISHES AT-THE-MARKET EQUITY OFFERING PROGRAM UNDER NEW BASE SHELF PROSPECTUS

Exhibit 99.2 STANDARD LITHIUM ESTABLISHES AT-THE-MARKET EQUITY OFFERING PROGRAM UNDER NEW BASE SHELF PROSPECTUS VANCOUVER, BC, August 8, 2025 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, today announced the establishment of an “at-the-market” equity program (the “ATM Program”) under its new base shelf pro

August 8, 2025 EX-99.3

Form 52-109F2 Certification of Interim Filings Full Certificate

Exhibit 99.3 Form 52-109F2 Certification of Interim Filings Full Certificate I, David Park, Chief Executive Officer of Standard Lithium Ltd., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Standard Lithium Ltd. (the "issuer") for the interim period ended June 30, 2025. 2. No misrepresentations: Based on my knowle

August 8, 2025 EX-99.1

Standard Lithium Reports Second Quarter 2025 Results

EXHIBIT 99.1 Standard Lithium Reports Second Quarter 2025 Results Achieved multiple critical milestones for development of the South West Arkansas (“SWA”) Project Steadily progressing towards a Final Investment Decision for Phase 1 of SWA targeted by year-end 2025 VANCOUVER, British Columbia, Aug. 08, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (

August 8, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-405

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

August 8, 2025 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three and six months ended June 30, 2025 and 2024

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three and six months ended June 30, 2025 and 2024 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at June 30, 2025 and December 31, 2024 (Expressed in thousands of US dollars - unaudited) Note June 30, 2025 December 31, 2024 ASSETS Current assets Cash $ 33

August 8, 2025 EX-99.2

Management’s Discussion and Analysis FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 2025

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE AND SIX MONTHS ENDED JUNE 30, 2025 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Three and Six Months Ended June 30, 2025 and 2024 introduction The following management’s discussion and analysis ("MD&A") was prepared by management of Standard Lithium Ltd. based on information available as of August 7, 2025 and sho

August 8, 2025 EX-99.4

Form 52-109F2 Certification of Interim Filings Full Certificate

Exhibit 99.4 Form 52-109F2 Certification of Interim Filings Full Certificate I, Salah Gamoudi, Chief Financial Officer of Standard Lithium Ltd., certify the following: 1. Review: I have reviewed the interim financial report and interim MD&A (together, the "interim filings") of Standard Lithium Ltd. (the "issuer") for the interim period ended June 30, 2025. 2. No misrepresentations: Based on my kno

August 8, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2025 Commission File Number 001‑40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

August 8, 2025 SUPPL

PROSPECTUS SUPPLEMENT dated August 8, 2025 to the Short Form Base Shelf Prospectus dated July 30, 2025

Filed Pursuant to General Instruction II.L of Form F-10 File No. 333-289110 PROSPECTUS SUPPLEMENT dated August 8, 2025 to the Short Form Base Shelf Prospectus dated July 30, 2025 New Issue August 8, 2025 STANDARD LITHIUM LTD. Up to US$50,000,000 of Common Shares This prospectus supplement (this “Prospectus Supplement”) of Standard Lithium Ltd. (the “Company” or “SLI”), together with the accompanyi

July 31, 2025 EX-5.8

CONSENT OF STEPHEN D. ROSS

Exhibit 5.8 CONSENT OF STEPHEN D. ROSS The undersigned hereby consents to the use of the undersigned’s name and the technical and scientific information which is included in, or incorporated by reference into, the Registration Statement on Form F-10 of Standard Lithium Ltd. being filed with the United States Securities and Exchange Commission. /s/ Stephen D. Ross Stephen D. Ross, P.Geol. Date: Jul

July 31, 2025 EX-5.7

CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC

Exhibit 5.7 CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC The undersigned hereby consents to the use of the undersigned’s name and information derived from the Amended and Restated Technical Reports titled "Amended and Restated Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated July 23, 2025 and "Amended and Restated NI 43-101 T

July 31, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

July 31, 2025 F-X

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM F-X APPOINTMENT OF AGENT FOR SERVICE OF PROCESS AND UNDERTAKING A. Name of issuer or person filing (“Filer”): Standard Lithium Ltd. B. (1) This is (check one): x an original filing for the Filer. ¨ an amended filing for the Filer. (2)  Check the following box if you are filing the Form F-X in paper in accordance with Regu

July 31, 2025 EX-99.1

List of Figures

Exhibit 99.1 South West Arkansas Project Pre-Feasibility Study 23 July 25 Cautionary Note Regarding Forward-Looking Information Information contained in this report and the documents referred to herein which are not statements of historical facts, may be “forward-looking information” for the purposes of Canadian Securities laws. Such forward looking information involves risks, uncertainties and ot

July 31, 2025 EX-FILING FEES

Table 1: Newly Registered Securities

Calculation of Filing Fee Tables F-10 STANDARD LITHIUM LTD. Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule or Instruction Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Common shares, without par value 457(o) Equity Preferred shares, without par value 457(o) Debt De

July 31, 2025 EX-5.3

CONSENT OF MIKE ROCKANDEL CONSULTING, LLC

Exhibit 5.3 CONSENT OF MIKE ROCKANDEL CONSULTING, LLC The undersigned hereby consents to the use of the undersigned’s name and information derived from the Amended and Restated Technical Report titled "Amended and Restated Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated July 23, 2025, which is included in, or incorporated

July 31, 2025 F-10EF

As filed with the Securities and Exchange Commission on July 31, 2025

As filed with the Securities and Exchange Commission on July 31, 2025 Registration No.

July 31, 2025 EX-5.4

CONSENT OF RESPEC COMPANY, LLC

Exhibit 5.4 CONSENT OF RESPEC COMPANY, LLC The undersigned hereby consents to the use of the undersigned’s name and information derived from the Amended and Restated Technical Report titled "Amended and Restated Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated July 23, 2025, which is included in, or incorporated by referenc

July 31, 2025 EX-5.6

CONSENT OF HAAS AND COBB PETROLEUM CONSULTANTS, LLC

Exhibit 5.6 CONSENT OF HAAS AND COBB PETROLEUM CONSULTANTS, LLC The undersigned hereby consents to the use of the undersigned’s name and information derived from the Amended and Restated Technical Reports titled "Amended and Restated Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated July 23, 2025 and "Amended and Restated NI

July 31, 2025 EX-99.2

Table 1-1. Description of LANXESS Unitized and Non-Unitized Land Holdings for Brine Production AOGC Order Reference Date Acres Hectares South Plant Brine Unit BU 1-1995 March 28, 1995 30,877 12,495 South Expansion Brine Unit 086-1-2016-11 November 28

Exhibit 99.2 Cautionary Note Regarding Forward-Looking Information These forward-looking statements relate to, among other things, resource estimates, grades and recoveries, development plans, mining methods and metrics including recovery process and, mining and production expectations including expected cash flows, capital cost estimates and expected life of mine, operating costs, the expected pa

July 31, 2025 EX-5.5

CONSENT OF ALLIANCE TECHNICAL GROUP

Exhibit 5.5 CONSENT OF ALLIANCE TECHNICAL GROUP The undersigned hereby consents to the use of the undersigned’s name and information derived from the Amended and Restated Technical Reports titled "Amended and Restated Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated July 23, 2025 and "Amended and Restated NI 43-101 Technica

July 17, 2025 EX-99.1

STANDARD LITHIUM ANNOUNCES RESULTS OF 2025 ANNUAL GENERAL AND SPECIAL MEETING

Exhibit 99.1 STANDARD LITHIUM ANNOUNCES RESULTS OF 2025 ANNUAL GENERAL AND SPECIAL MEETING Vancouver, BC – July 16, 2025 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, is pleased to announce the detailed voting results from its Annual General and Special Meeting held on July 16, 2025 (the “Meeting”). A tota

July 17, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

July 17, 2025 EX-99.2

STANDARD LITHIUM LTD. (the “Company”) Voting Results for Annual General and Special Meeting of Shareholders of the Company held on July 16, 2025 (the “Meeting”)

Exhibit 99.2 STANDARD LITHIUM LTD. (the “Company”) Voting Results for Annual General and Special Meeting of Shareholders of the Company held on July 16, 2025 (the “Meeting”) REPORT OF VOTING RESULTS National Instrument 51-102 - Continuous Disclosure Obligations Section 11.3 Common shares of the Company (the “Common Shares”) represented at the Meeting: 59,747,812 Total issued and outstanding Common

July 15, 2025 EX-99.1

Smackover Lithium Reports Highest Lithium Brine Grade in SWA Project Area as FEED Studies Nearing Completion

EXHIBIT 99.1 Smackover Lithium Reports Highest Lithium Brine Grade in SWA Project Area as FEED Studies Nearing Completion LEWISVILLE, Ark., July 15, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE.A: SLI) and Equinor, is pleased to announce that it has completed sampling from its newest explorat

July 15, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of July 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C

June 23, 2025 EX-99.1

Standard Lithium Announces New VP Appointments to Expand and Strengthen Senior Management

EXHIBIT 99.1 Standard Lithium Announces New VP Appointments to Expand and Strengthen Senior Management VANCOUVER, British Columbia, June 23, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI), a leading near-commercial lithium company, is pleased to announce the appointment of Daniel Rosen as Vice President of Strategy and Investor Re

June 23, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C

June 5, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of June 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

June 5, 2025 EX-99.2

NOTICE AND ACCESS NOTIFICATION TO SHAREHOLDERS ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON JULY 16, 2025

Exhibit 99.2 NOTICE AND ACCESS NOTIFICATION TO SHAREHOLDERS ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON JULY 16, 2025 You are receiving this notification because Standard Lithium Ltd. (the “Company”) has opted to use the “notice and access” system for delivery of meeting materials to its shareholders in respect of its annual general and special meeting of shareholders to be he

June 5, 2025 EX-99.1

STANDARD LITHIUM LTD. NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS MANAGEMENT INFORMATION CIRCULAR Dated: May 30, 2025 Meeting Details Date: July 16, 2025 Time: 10:00 a.m. (Pacific time) Place: Virtual STANDARD LITHIUM LTD. 1625 – 107

Exhibit 99.1 STANDARD LITHIUM LTD. NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS AND MANAGEMENT INFORMATION CIRCULAR Dated: May 30, 2025 Meeting Details Date: July 16, 2025 Time: 10:00 a.m. (Pacific time) Place: Virtual STANDARD LITHIUM LTD. 1625 – 1075 West Georgia Street Vancouver, BC, Canada, V6E 3C9 NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING NOTICE IS HEREBY GIVEN that the Ann

June 5, 2025 EX-99.3

STANDARD LITHIUM LTD. Appointment of Proxyholder I/We, being holder(s) of common shares of Standard Lithium Ltd. (the “Company”), hereby appoint David Park or, failing this person, Salah Gamoudi or, failing this person, Sam Cole OR __________________

Exhibit 99.3 STANDARD LITHIUM LTD. Appointment of Proxyholder I/We, being holder(s) of common shares of Standard Lithium Ltd. (the “Company”), hereby appoint David Park or, failing this person, Salah Gamoudi or, failing this person, Sam Cole OR Print the name of the person you are appointing if this person is someone other than the individuals listed above as proxy of the undersigned, to attend, a

June 5, 2025 EX-99.5

STANDARD LITHIUM LTD. ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS

Exhibit 99.5 STANDARD LITHIUM LTD. ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS Under Canadian securities law, you are entitled to receive certain investor documents. If you wish to receive them, please either complete and return this card by mail (see address below) or you may also go to the TSX Trust Company website https://services.tsxtrust.com/financialstatements and input code 7237A. ¨

June 5, 2025 EX-99.4

STANDARD LITHIUM LTD. Appointee I/We, being holder(s) of common shares of Standard Lithium Ltd. (the “Company”), hereby appoint David Park or, failing this person, Salah Gamoudi or, failing this person, Sam Cole OR ___________________________________

Exhibit 99.4 STANDARD LITHIUM LTD. Appointee I/We, being holder(s) of common shares of Standard Lithium Ltd. (the “Company”), hereby appoint David Park or, failing this person, Salah Gamoudi or, failing this person, Sam Cole OR Print the name of the person you are appointing if this person is someone other than the individuals listed above as proxy of the undersigned, to attend, act and vote on be

June 3, 2025 EX-99.1

Standard Lithium, in Partnership with Telescope Innovations, to Produce Next Generation Solid-State Battery Materials

EXHIBIT 99.1 Standard Lithium, in Partnership with Telescope Innovations, to Produce Next Generation Solid-State Battery Materials NEW AND NOVEL LOW TEMPERATURE IP-PROTECTED METHOD FOR PRODUCING LITHIUM SULFIDE DEVELOPED IN PARTNERSHIP BETWEEN STANDARD LITHIUM AND TELESCOPE INNOVATIONS LITHIUM PRODUCTS FROM STANDARD LITIHIUM’S ARKANSAS DEMONSTRATION PLANT USED TO MAKE NEXT GENERATION LITHIUM SULFI

June 3, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of June 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C

May 29, 2025 EX-99.1

Smackover Lithium’s South West Arkansas Project Receives Royalty Rate Approval From the Arkansas Oil and Gas Commission

EXHIBIT 99.1 Smackover Lithium’s South West Arkansas Project Receives Royalty Rate Approval From the Arkansas Oil and Gas Commission LEWISVILLE, Ark., May 29, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE:A:SLI) and Equinor, is pleased to announce that the Arkansas Oil and Gas Commission (“AOGC

May 29, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 27, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Ad

May 27, 2025 EX-99.1

TSX TRUST COMPANY

Exhibit 99.1 TSX TRUST COMPANY VIA ELECTRONIC TRANSMISSION May 5, 2025 TO ALL APPLICABLE EXCHANGES AND COMMISSIONS: RE: STANDARD LITHIUM LTD. Confirmation of Notice of Record and Meeting Dates We are pleased to confirm that Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities. We advise the following with respect to the upcoming Annual General and Special Meeting o

May 9, 2025 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three months ended March 31, 2025 and 2024

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three months ended March 31, 2025 and 2024 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at March 31, 2025 and December 31, 2024 (Expressed in thousands of US dollars - unaudited) Note March 31, 2025 December 31, 2024 ASSETS Current assets Cash $ 31,569

May 9, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of May, 2025 Commission File Number 001‑40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

May 9, 2025 EX-99.2

Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED MARCH 31, 2025

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED MARCH 31, 2025 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Three Months Ended March 31, 2025 and 2024 introduction The following management’s discussion and analysis ("MD&A") was prepared by management of Standard Lithium Ltd. based on information available as of May 8, 2025 and should be reviewed i

May 9, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 9, 2025 EX-99.1

Standard Lithium Reports Fiscal First Quarter 2025 Results

EXHIBIT 99.1 Standard Lithium Reports Fiscal First Quarter 2025 Results VANCOUVER, British Columbia, May 09, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI), a leading near-commercial lithium company, today announced its financial and operating results for the three month fiscal period ended March 31, 2025. “2025 will be a pivotal

May 9, 2025 EX-99.4

Form 52-109F2 Certification of Interim Filings Full Certificate

Form 52-109F2 Certification of Interim Filings Full Certificate I, Salah Gamoudi, Chief Financial Officer of Standard Lithium Ltd.

May 9, 2025 EX-99.3

Form 52-109F2 Certification of Interim Filings Full Certificate

Form 52-109F2 Certification of Interim Filings Full Certificate I, David Park, Chief Executive Officer of Standard Lithium Ltd.

May 6, 2025 EX-99.1

Smackover Lithium Submits Royalty Application to Arkansas Oil and Gas Commission for South West Arkansas Project

EXHIBIT 99.1 Smackover Lithium Submits Royalty Application to Arkansas Oil and Gas Commission for South West Arkansas Project LEWISVILLE, Ark., May 06, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE:A:SLI) and Equinor, announced that SWA Lithium LLC has submitted an application to the Arkansas O

May 6, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

April 24, 2025 EX-99.1

Smackover Lithium’s South West Arkansas Project Receives Unanimous Vote of Approval to Establish the Phase I Brine Production Unit from the Arkansas Oil and Gas Commission

EXHIBIT 99.1 Smackover Lithium’s South West Arkansas Project Receives Unanimous Vote of Approval to Establish the Phase I Brine Production Unit from the Arkansas Oil and Gas Commission LEWISVILLE, Ark., April 24, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE:A:SLI) and Equinor, is pleased to an

April 24, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

April 22, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of April 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

April 22, 2025 EX-99.1

Smackover Lithium’s South West Arkansas Project Receives Special Designation as a Priority Transparency Critical Mineral Project From the Trump Administration

EXHIBIT 99.1 Smackover Lithium’s South West Arkansas Project Receives Special Designation as a Priority Transparency Critical Mineral Project From the Trump Administration LEWISVILLE, Ark., April 21, 2025 (GLOBE NEWSWIRE) - Smackover Lithium, a Joint Venture (“JV”) between Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE:A:SLI) and Equinor, is proud to announce that its

March 26, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 26, 2025 EX-99.1

Standard Lithium Provides Corporate Update

EXHIBIT 99.1 Standard Lithium Provides Corporate Update VANCOUVER, British Columbia, March 26, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI), a leading near-commercial lithium company, is pleased to provide a general corporate update demonstrating continuous advancement and derisking of corporate objectives. Principal corporate u

March 24, 2025 EX-99.13

CONSENT OF HAAS AND COBB PETROLEUM CONSULTANTS, LLC

Exhibit 99.13 CONSENT OF HAAS AND COBB PETROLEUM CONSULTANTS, LLC The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Reports titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023 and "South West Arkansas Project Pre-Feasibility Study" dated Sep

March 24, 2025 EX-97

STANDARD LITHIUM LTD. CLAWBACK POLICY

Exhibit 97 STANDARD LITHIUM LTD. CLAWBACK POLICY As required by Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act, as it may be amended from time to time, and the related rules or regulations promulgated by the SEC and the NYSE, the Board of Directors (the “Board”) of Standard Lithium Ltd. (the “Company”) adopts this Clawback Policy (this “Policy”) to be applied to the E

March 24, 2025 EX-99.8

Consent of Independent Registered Public Accounting Firm

Exhibit 99.8 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference in this Annual Report on Form 40-F for the six month fiscal period ended December 31, 2024 of Standard Lithium Ltd. of our report dated March 21, 2025, relating to the consolidated financial statements, which appears in Exhibit 99.3 incorporated by reference in this Annual Repo

March 24, 2025 EX-99.12

CONSENT OF ALLIANCE TECHNICAL GROUP, LLC

Exhibit 99.12 CONSENT OF ALLIANCE TECHNICAL GROUP, LLC The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Reports titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023 and "South West Arkansas Project Pre-Feasibility Study" dated September 18,

March 24, 2025 EX-99.5

Certificate of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 Certificate of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Salah Gamoudi, certify that: 1. I have reviewed this annual report on Form 40-F of Standard Lithium Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of th

March 24, 2025 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 or ☒ ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the six month fiscal period ended December 31, 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Exact name of Registrant a

March 24, 2025 EX-99.6

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the annual report of Standard Lithium Ltd. (the “Company”) on Form 40-F for six month fiscal period ended December 31, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David

March 24, 2025 EX-99.7

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the annual report of Standard Lithium Ltd. (the “Company”) on Form 40-F for the six month fiscal period ended December 31, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Sa

March 24, 2025 EX-99.3

Consolidated Financial Statements (Expressed in US dollars) Six month fiscal period ended December 31, 2024 and year ended June 30, 2024

Exhibit 99.3 Consolidated Financial Statements (Expressed in US dollars) Six month fiscal period ended December 31, 2024 and year ended June 30, 2024 Report of Independent Registered Public Accounting Firm To the Board of Directors and Shareholders of Standard Lithium Ltd. Opinion on the Financial Statements We have audited the accompanying consolidated statements of financial position of Standard

March 24, 2025 EX-99.14

CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC

Exhibit 99.14 CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Reports titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023 and "South West Arkansas Project Pre-Feasibility Study" dated September 18

March 24, 2025 EX-99.4

Certificate of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.4 Certificate of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, David Park, certify that: 1. I have reviewed this annual report on Form 40-F of Standard Lithium Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the c

March 24, 2025 EX-99.1

Standard Lithium Reports Results for Six Month Fiscal Period Ended December 31, 2024

EXHIBIT 99.1 Standard Lithium Reports Results for Six Month Fiscal Period Ended December 31, 2024 VANCOUVER, British Columbia, March 24, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI), a leading near-commercial lithium company, today announced its financial and operating results for the six month fiscal period ended December 31, 2

March 24, 2025 EX-99.11

CONSENT OF SUSAN B. PATTON

Exhibit 99.11 CONSENT OF SUSAN B. PATTON The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, a

March 24, 2025 EX-99.9

CONSENT OF MAREK DWORZANOWSKI

Exhibit 99.9 CONSENT OF MAREK DWORZANOWSKI The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "South West Arkansas Project Pre-Feasibility Study" dated September 18, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, and any amendments and exhibits thereto, of Standard Lithium Ltd

March 24, 2025 EX-99.1

STANDARD LITHIUM LTD. ANNUAL INFORMATION FORM for the Fiscal Year ended December 31, 2024 Dated March 21, 2025 CORPORATE OFFICE Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, V6E 3C9 REGISTERED OFFICE Suite 2200, 885 West Georgia S

Table of Contents Exhibit 99.1 STANDARD LITHIUM LTD. ANNUAL INFORMATION FORM for the Fiscal Year ended December 31, 2024 Dated March 21, 2025 CORPORATE OFFICE Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, V6E 3C9 REGISTERED OFFICE Suite 2200, 885 West Georgia Street Vancouver, British Columbia, V6C 3E8 Table of Contents TABLE OF CONTENTS PRELIMINARY NOTES AND CAUTIONARY STATEME

March 24, 2025 EX-99.10

CONSENT OF MIKE ROCKANDEL

Exhibit 99.10 CONSENT OF MIKE ROCKANDEL The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, an

March 24, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 24, 2025 EX-99.2

Management’s Discussion and Analysis FOR THE SIX MONTH FISCAL PERIOD ENDED DECEMBER 31, 2024

Exhibit 99.2 Management’s Discussion and Analysis FOR THE SIX MONTH FISCAL PERIOD ENDED DECEMBER 31, 2024 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Six Month Fiscal Period Ended December 31, 2024 introduction The following management’s discussion and analysis (“MD&A”) was prepared by management based on information available as of March 21, 2025, and should be reviewed in

March 19, 2025 EX-99.1

Standard Lithium Appoints Karen G. Narwold to the Board of Directors

EXHIBIT 99.1 Standard Lithium Appoints Karen G. Narwold to the Board of Directors VANCOUVER, British Columbia, March 19, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI), a leading near-commercial lithium company, is pleased to announce the appointment of Karen G. Narwold, NACD.DC as an independent member of its board of directors.

March 19, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 11, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 11, 2025 EX-99.1

Smackover Lithium Successfully Completes Derisking of DLE Technology With Final Field-Test at South West Arkansas Project

EXHIBIT 99.1 Smackover Lithium Successfully Completes Derisking of DLE Technology With Final Field-Test at South West Arkansas Project Field-Pilot DLE Facility Exceeds Key Performance Criteria to Confirm Engineering Design for South West Arkansas Project Large Volumes of DLE Product Sent to Third Party Vendors for Conversion to Battery-Quality Lithium Carbonate – These Samples Will Be Used in the

March 5, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-4056

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of March 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3

March 5, 2025 EX-99.1

Standard Lithium to Attend 37th Annual Roth Conference

EXHIBIT 99.1 Standard Lithium to Attend 37th Annual Roth Conference VANCOUVER, British Columbia, March 05, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium”) (TSXV:SLI) (NYSE:A:SLI), a leading near-commercial lithium developer today announced senior leadership will participate in the upcoming 37th Annual Roth Conference. Event 37th Annual Roth Conference Date March 16 – 18, 2025 Lo

January 30, 2025 EX-99.1

Standard Lithium, Equinor announce Smackover Lithium as new joint venture name

EXHIBIT 99.1 Standard Lithium, Equinor announce Smackover Lithium as new joint venture name LEWISVILLE, Ark., Jan. 30, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium”) (TSXV:SLI) (NYSE:A:SLI), a leading near-commercial lithium developer, and Equinor, a global energy leader, today announced Smackover Lithium as the new name for their joint venture developing direct lithium extract

January 30, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

January 16, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

January 16, 2025 EX-99.1

Standard Lithium and Equinor Finalize $225 Million Grant from the U.S. Department of Energy for the South West Arkansas Project

EXHIBIT 99.1 Standard Lithium and Equinor Finalize $225 Million Grant from the U.S. Department of Energy for the South West Arkansas Project LEWISVILLE, Ark., Jan. 16, 2025 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium”) (TSXV:SLI) (NYSE:A:SLI), a leading near-commercial lithium developer, and Equinor, a global energy leader, today announced that its jointly-owned U.S. subsidiary, SW

January 15, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of January 2025 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

January 15, 2025 EX-99.1

SWA Lithium Drills New Smackover Well and Conducts Extensive Reservoir Testing Program at South West Arkansas Lithium Project

EXHIBIT 99.1 SWA Lithium Drills New Smackover Well and Conducts Extensive Reservoir Testing Program at South West Arkansas Lithium Project SWA Lithium and Contractors Drill a New Well into the Smackover Formation to Complete Understanding of the Reservoir for Production Modelling Additional Testing Program in 2023 Wells is Designed to Improve Understanding of Formation and Revise the Brine Chemist

January 10, 2025 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of January 2025 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (A

January 10, 2025 EX-99.1

STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE

Exhibit 99.1 STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE VANCOUVER, BC, January 10, 2025 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, today provided a quarterly update with respect to the Company’s previously announced “at-the-market” equity program (the “ATM Program”) launched on November 17, 20

December 31, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (

December 31, 2024 EX-99.1

Form 51-102F6 STATEMENT OF EXECUTIVE COMPENSATION (for the year ended June 30, 2024)

Exhibit 99.1 Form 51-102F6 STATEMENT OF EXECUTIVE COMPENSATION (for the year ended June 30, 2024) The following information is presented in accordance with Form 51-102F6 – Statement of Executive Compensation (the “Form”) and sets forth compensation of Standard Lithium Ltd. (the “Company”) for the year ended June 30, 2024. This Statement of Executive Compensation is dated for reference December 31,

December 19, 2024 EX-99.1

SWA Lithium Advances and Derisks DLE Technology with Field-Testing at South West Arkansas Lithium Project

EXHIBIT 99.1 SWA Lithium Advances and Derisks DLE Technology with Field-Testing at South West Arkansas Lithium Project SWA Lithium and Koch Technology Solutions Teams Collaborate to Design, Build, and Operate a Field-Pilot DLE Facility to Confirm Engineering Design for SWA Project Samples of Battery-Quality Lithium Carbonate Produced from the Field-Based Pilot Will be Used in the Qualification Pro

December 19, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

December 11, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of December 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

December 11, 2024 EX-99.1

Standard Lithium Appoints Paul Collins to the Board of Directors Mr. Collins Brings Over 35 Years of Advisory and Investment Banking Experience in Industrials, Chemicals and Energy to the Standard Lithium Board

EXHIBIT 99.1 Standard Lithium Appoints Paul Collins to the Board of Directors Mr. Collins Brings Over 35 Years of Advisory and Investment Banking Experience in Industrials, Chemicals and Energy to the Standard Lithium Board VANCOUVER, British Columbia, Dec. 10, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading ne

November 19, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of November 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (

November 19, 2024 EX-99.1

STANDARD LITHIUM LTD. NOTICE OF CHANGE IN YEAR-END Pursuant to Part 4 of National Instrument 51-102 Continuous Disclosure Obligations

Exhibit 99.1 STANDARD LITHIUM LTD. NOTICE OF CHANGE IN YEAR-END Pursuant to Part 4 of National Instrument 51-102 Continuous Disclosure Obligations (a) Notice is hereby provided that pursuant to section 4.8(2) of National Instrument 51-102 that Standard Lithium Ltd. (the “Company”) has decided to change its year-end from June 30 to December 31. (b) The Issuer wishes to change its year-end in order

November 12, 2024 EX-99.2

Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2024

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2024 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Three Months Ended September 30, 2024 introduction This management’s discussion and analysis ("MD&A") for Standard Lithium Ltd. was prepared by management based on information available as of November 12, 2024 and should be reviewed in c

November 12, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A‑16 OR 15D‑16 OF THE SECURITIES EXCHANGE ACT OF 1934 For the month of November, 2024 Commission File Number 001‑40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9

November 12, 2024 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three months ended September 30, 2024 and 2023

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in US dollars - unaudited) Three months ended September 30, 2024 and 2023 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at September 30, 2024 and June 30, 2024 (Expressed in thousands of US dollars - unaudited) September 30, 2024 June 30, 2024 July 1, 2023 Currency remeasurement:

November 12, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number: 001-4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of November 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6

November 12, 2024 EX-99.3

Form 52-109F2 Certification of Interim Filings Full Certificate

Form 52-109F2 Certification of Interim Filings Full Certificate I, David Park, Chief Executive Officer of Standard Lithium Ltd.

November 12, 2024 EX-99.4

Form 52-109F2 Certification of Interim Filings Full Certificate

Form 52-109F2 Certification of Interim Filings Full Certificate I, Salah Gamoudi, Chief Financial Officer of Standard Lithium Ltd.

November 12, 2024 EX-99.1

Standard Lithium Reports Fiscal First Quarter 2025 Results

EXHIBIT 99.1 Standard Lithium Reports Fiscal First Quarter 2025 Results VANCOUVER, British Columbia, Nov. 12, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium company, today announced its financial and operating results for the fiscal first quarter 2025 ended September 30, 2024. “Our fisc

October 28, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number: 001-40

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of October 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E

October 28, 2024 EX-99.1

SWA Lithium and Koch Technology Solutions Sign License for First Commercial DLE Project in North America Commercial-Scale DLE Column Continues to Exceed Expectations at Demonstration Plant in Arkansas

EXHIBIT 99.1 SWA Lithium and Koch Technology Solutions Sign License for First Commercial DLE Project in North America Commercial-Scale DLE Column Continues to Exceed Expectations at Demonstration Plant in Arkansas EL DORADO, Ark., Oct. 28, 2024 (GLOBE NEWSWIRE) - SWA Lithium, the Joint Venture between Standard Lithium and Equinor which is developing the South West Arkansas Project (“SWA” or the “P

September 24, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V

September 24, 2024 EX-99.2

Management’s Discussion and Analysis FOR THE YEAR ENDED JUNE 30, 2024

Exhibit 99.2 Management’s Discussion and Analysis FOR THE YEAR ENDED JUNE 30, 2024 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Year Ended June 30, 2024 INTRODUCTION The following management’s discussion and analysis (“MD&A”) for Standard Lithium Ltd. was prepared by management based on information available as of September 24, 2024 and it should be reviewed in conjunction wi

September 24, 2024 EX-99.8

Consent of Independent Registered Public Accounting Firm

Exhibit 99.8 Consent of Independent Registered Public Accounting Firm We hereby consent to the incorporation by reference in this Annual Report on Form 40-F for the year ended June 30, 2024 of Standard Lithium Ltd. of our report dated September 24, 2024, relating to the consolidated financial statements, which appears in Exhibit 99.3 incorporated by reference in this Annual Report on Form 40-F. We

September 24, 2024 EX-99.7

Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.7 Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the annual report of Standard Lithium Ltd. (the “Company”) on Form 40-F for the year ended June 30, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Salah Gamoudi, Chief Fina

September 24, 2024 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 40-F ☐ REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 or ☒ ANNUAL REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended June 30, 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Exact name of Registrant as specified in i

September 24, 2024 EX-99.11

CONSENT OF SUSAN B. PATTON

Exhibit 99.11 CONSENT OF SUSAN B. PATTON The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Report titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, a

September 24, 2024 EX-99.6

Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

Exhibit 99.6 Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 In connection with the annual report of Standard Lithium Ltd. (the “Company”) on Form 40-F for the year ended June 30, 2024, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David Park, Chief Executi

September 24, 2024 EX-99.1

STANDARD LITHIUM LTD. ANNUAL INFORMATION FORM for the Fiscal Year ended June 30, 2024 Dated September 24, 2024 CORPORATE OFFICE Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, V6E 3C9 REGISTERED OFFICE Suite 2200, 885 West Georgia S

Table of Contents Exhibit 99.1 STANDARD LITHIUM LTD. ANNUAL INFORMATION FORM for the Fiscal Year ended June 30, 2024 Dated September 24, 2024 CORPORATE OFFICE Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, V6E 3C9 REGISTERED OFFICE Suite 2200, 885 West Georgia Street Vancouver, British Columbia, V6C 3E8 Table of Contents TABLE OF CONTENTS PRELIMINARY NOTES AND CAUTIONARY STATEME

September 24, 2024 EX-99.12

CONSENT OF ALLIANCE TECHNICAL GROUP, LLC

Exhibit 99.12 CONSENT OF ALLIANCE TECHNICAL GROUP, LLC The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Reports titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023 and "South West Arkansas Project Pre-Feasibility Study" dated September 18,

September 24, 2024 EX-97

STANDARD LITHIUM LTD. CLAWBACK POLICY

Exhibit 97 STANDARD LITHIUM LTD. CLAWBACK POLICY As required by Section 954 of the Dodd-Frank Wall Street Reform and Consumer Protection Act, as it may be amended from time to time, and the related rules or regulations promulgated by the SEC and the NYSE, the Board of Directors (the “Board”) of Standard Lithium Ltd. (the “Company”) adopts this Clawback Policy (this “Policy”) to be applied to the E

September 24, 2024 6-K/A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A (Amendment No. 1) Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K/A (Amendment No. 1) Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Colum

September 24, 2024 EX-99.13

CONSENT OF HAAS & COBB PETROLEUM CONSULTANTS

Exhibit 99.13 CONSENT OF HAAS & COBB PETROLEUM CONSULTANTS The undersigned hereby consents to the use of the undersigned's name and information derived from the Technical Reports titled "Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023 and "South West Arkansas Project Pre-Feasibility Study" dated September

September 24, 2024 EX-99.5

Certificate of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.5 Certificate of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Salah Gamoudi, certify that: 1. I have reviewed this annual report on Form 40-F of Standard Lithium Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of th

September 24, 2024 EX-99.14

CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC

Exhibit 99.14 CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Reports titled “Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant” dated October 18, 2023 and “South West Arkansas Project Pre-Feasibility Study” dated September 18

September 24, 2024 EX-99.3

Consolidated Financial Statements (Expressed in Canadian dollars) Years ended June 30, 2024 and 2023

Exhibit 99.3 Consolidated Financial Statements (Expressed in Canadian dollars) Years ended June 30, 2024 and 2023 Report of Independent Registered Public Accounting Firm To the Board of Directors and Shareholders of Standard Lithium Ltd. Opinion on the Financial Statements We have audited the accompanying consolidated statements of financial position of Standard Lithium Ltd. and its subsidiaries (

September 24, 2024 EX-99.4

Certificate of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

Exhibit 99.4 Certificate of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, David Park, certify that: 1. I have reviewed this annual report on Form 40-F of Standard Lithium Ltd.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the c

September 24, 2024 EX-99.10

CONSENT OF MIKE ROCKANDEL

Exhibit 99.10 CONSENT OF MIKE ROCKANDEL The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled “Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant” dated October 18, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, an

September 24, 2024 EX-99.1

Standard Lithium Reports 2024 Full Year and Fourth Quarter Results

EXHIBIT 99.1 Standard Lithium Reports 2024 Full Year and Fourth Quarter Results VANCOUVER, British Columbia, Sept. 24, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium company, today announced its financial and operating results for the fiscal fourth quarter and year ended June 30, 2024.

September 24, 2024 EX-99.9

CONSENT OF MAREK DWORZANOWSKI

Exhibit 99.9 CONSENT OF MAREK DWORZANOWSKI The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled “South West Arkansas Project Pre-Feasibility Study” dated September 18, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, and any amendments and exhibits thereto, of Standard Lithium Ltd

September 23, 2024 EX-99.1

Arkansas Governor, Local and Community Leaders Congratulate Standard Lithium, Equinor for U.S. Department of Energy Provisional Grant up to US$225 million DOE conditional grant for the South West Arkansas project is one of the largest ever received b

EXHIBIT 99.1 Arkansas Governor, Local and Community Leaders Congratulate Standard Lithium, Equinor for U.S. Department of Energy Provisional Grant up to US$225 million DOE conditional grant for the South West Arkansas project is one of the largest ever received by a U.S. critical minerals project LEWISVILLE, Ark., Sept. 23, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium”) (TSXV:S

September 23, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V

September 20, 2024 EX-99.1

U.S. Department of Energy Selects Standard Lithium and Equinor for Award Negotiation of Up to $225 Million for South West Arkansas Project

EXHIBIT 99.1 U.S. Department of Energy Selects Standard Lithium and Equinor for Award Negotiation of Up to $225 Million for South West Arkansas Project LEWISVILLE, Ark., Sept. 20, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium”) (TSXV:SLI) (NYSE:A:SLI), a leading near-commercial lithium development and technology company and Equinor, a global energy leader, today announced that i

September 20, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of September 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V

September 3, 2024 EX-99.1

Standard Lithium Completes Leadership Transition: David Park Appointed CEO and Board Member

Exhibit 99.1 September 2, 2024 Standard Lithium Completes Leadership Transition: David Park Appointed CEO and Board Member September 2, 2024 Vancouver, British Columbia. – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium development company, today announces that, effective September 1, 2024, David Park has offic

September 3, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of September 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9

August 12, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Ad

August 12, 2024 EX-99.1

STANDARD LITHIUM ANNOUNCES GRANT OF INCENTIVE SECURITIES

Exhibit 99.1 STANDARD LITHIUM ANNOUNCES GRANT OF INCENTIVE SECURITIES Vancouver, British Columbia – August 9, 2024 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI) (FRA: S5L), a leading near-commercial lithium company, announces the grant of 1,063,394 stock options, 1,357,289 restricted share units (“RSUs”), and 441,935 deferred share units (“DSUs”) to

August 9, 2024 SC 13G/A

SLI / Standard Lithium Ltd. / KSP Standard Lithium Investments, LLC - SC 13G/A Passive Investment

SC 13G/A 1 d866010dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Standard Lithium Ltd. (Name of Issuer) Common Shares, without par value (Title of Class of Securities) 853606101 (CUSIP Number) August 1, 2024 (Date of Event Which Requires Filing of this Statement) Check the approp

August 9, 2024 EX-99.1

JOINT FILING AGREEMENT

EX-99.1 2 d866010dex991.htm EX-99.1 EXHIBIT 99.1 JOINT FILING AGREEMENT This will confirm the agreement by and among the undersigned that the Schedule 13G/A filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the Common Shares, without par value, of Standard Lithium Ltd. (this “Agreement”), is being filed, and

August 1, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of August 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Ad

August 1, 2024 EX-99.1

Standard Lithium Announces Leadership Transition For Strategic Growth and Next Steps in Value Creation

Exhibit 99.1 1st August, 2024 Standard Lithium Announces Leadership Transition For Strategic Growth and Next Steps in Value Creation POSITIONING STANDARD LITHIUM FOR NEXT PHASE OF CORPORATE GROWTH 1st August 2024, Vancouver, British Columbia – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium development company,

July 24, 2024 EX-99.1

STANDARD LITHIUM SETTLES ADVISORY FEE RELATED TO EQUINOR PARTNERSHIP

Exhibit 99.1 STANDARD LITHIUM SETTLES ADVISORY FEE RELATED TO EQUINOR PARTNERSHIP Vancouver, BC – July 23, 2024 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium development company, announces that it has reached an agreement with an arms-length third-party advisor (the “Advisor”) to settle a fee of US$800,000 in consi

July 24, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

July 8, 2024 EX-99.1

STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE

Exhibit 99.1 STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE VANCOUVER, BC, July 5, 2024 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, today provided a quarterly update with respect to the Company’s previously announced “at-the-market” equity program (the “ATM Program”) launched on November 17, 2023.

July 8, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

July 1, 2024 EX-99.1

STANDARD LITHIUM ANNOUNCES RESULTS OF 2024 ANNUAL GENERAL AND SPECIAL MEETING

Exhibit 99.1 STANDARD LITHIUM ANNOUNCES RESULTS OF 2024 ANNUAL GENERAL AND SPECIAL MEETING Vancouver, BC – June 28, 2024 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI) (FRA: S5L), a leading near-commercial lithium development company, is pleased to announce the detailed voting results from its Annual General and Special Meeting held on June 27, 2024

July 1, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of July 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addr

July 1, 2024 EX-99.2

STANDARD LITHIUM LTD. (the “Company”) Voting Results for Annual General and Special Meeting of Shareholders of the Company held on June 27, 2024 (the “Meeting”)

Exhibit 99.2 STANDARD LITHIUM LTD. (the “Company”) Voting Results for Annual General and Special Meeting of Shareholders of the Company held on June 27, 2024 (the “Meeting”) REPORT OF VOTING RESULTS National Instrument 51-102 - Continuous Disclosure Obligations Section 11.3 Common shares of the Company (the “Common Shares”) represented at the Meeting: 47,372,931 Total issued and outstanding Common

May 29, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number: 001-40569

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 6-K REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of May 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 1625, 1075 West Georgia Street Vancouver, British Columbia, Canada V6E 3C9

May 29, 2024 EX-99.1

Standard Lithium to Attend Upcoming Industry Conferences

EXHIBIT 99.1 Standard Lithium to Attend Upcoming Industry Conferences VANCOUVER, British Columbia, May 29, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium development company, today announced participation in the following upcoming industry conferences: Event Benchmark Giga USA 2024, Was

May 28, 2024 EX-99.1

STANDARD LITHIUM LTD. NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS MANAGEMENT INFORMATION CIRCULAR Dated: May 15, 2024 Meeting Details

Exhibit 99.1 STANDARD LITHIUM LTD. NOTICE OF ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS AND MANAGEMENT INFORMATION CIRCULAR Dated: May 15, 2024 Meeting Details Date: June 27, 2024 Time: 10:00 a.m. (Pacific time) Place: Virtual MESSAGE FROM OUR CEO Dear Valued Shareholders: The past year has presented the lithium sector with significant challenges, from market specific headwinds to broader

May 28, 2024 6-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 6-K Report of Foreign Private Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of May 2024 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 (Addre

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