SLI / Standard Lithium Ltd. - Pemfailan SEC, Laporan Tahunan, Penyata Proksi

Standard Lithium Ltd.
US ˙ NYSEAM ˙ CA8536061010

Statistik Asas
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)
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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

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

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 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 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 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 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

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 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-99.3

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

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 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 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

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-5.4

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 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-5.3

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 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-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-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 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-5.5

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 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 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 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 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 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 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

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

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 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 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-99.2

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 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-99.3

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-99.4

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 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 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

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-99.2

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 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-99.3

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 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 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

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

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 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

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

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 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 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-99.3

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-99.7

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-99.6

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-99.5

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 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 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 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-99.9

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 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-99.13

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-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 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-99.4

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-99.8

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-99.11

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 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 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

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

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 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 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 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

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

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-99.1

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 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-99.1

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

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 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 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 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

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

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

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-99.5

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-99.4

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-99.3

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-99.14

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-99.1

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 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-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 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-99.2

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 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-99.7

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 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-99.12

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-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 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-99.10

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 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 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 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 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

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

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 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 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 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 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,

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

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-99.2

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

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

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 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

May 28, 2024 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 Robert Mintak 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 Robert Mintak 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

May 28, 2024 EX-99.4

STANDARD LITHIUM LTD. Appointee I/We, being holder(s) of common shares of Standard Lithium Ltd. (the “Company”), hereby appoint Robert Mintak 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 Robert Mintak 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

May 28, 2024 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://www.tsxtrust.com/InvestorServices/Financial-Statements and input c

May 28, 2024 EX-99.2

NOTICE AND ACCESS NOTIFICATION TO SHAREHOLDERS ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON JUNE 27, 2024

Exhibit 99.2 NOTICE AND ACCESS NOTIFICATION TO SHAREHOLDERS ANNUAL AND SPECIAL MEETING OF SHAREHOLDERS TO BE HELD ON JUNE 27, 2024 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 and special meeting of shareholders to be held on June 27, 2

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 9, 2024 EX-99.5

May 9, 2024

Exhibit 99.5 May 9, 2024 STANDARD LITHIUM REPORTS FISCAL THIRD QUARTER 2024 RESULTS, SCHEDULES INVESTOR UPDATE CALL STRATEGIC EXECUTION SECURES LEADING GLOBAL ENERGY PARTNER, EQUINOR. INJECTS IMMEDIATE LIQUIDITY THROUGH DIRECT INVESTMENTS IN SOUTH WEST ARKANSAS AND EAST TEXAS PROJECTS PARTNERSHIP BRINGS WORLD-CLASS PROJECT DEVELOPMENT CAPABILITIES, ACCELERATING SMACKOVER DEVELOPMENT PATH May 9, 20

May 9, 2024 EX-99.3

Form 52-109FV2 Certification of Interim Filings Venture Issuer Basic Certificate

Exhibit 99.3 Form 52-109FV2 Certification of Interim Filings Venture Issuer Basic Certificate I, Robert Mintak, 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, 2024. 2. No misrepresentations

May 9, 2024 EX-99.4

Form 52-109FV2 Certification of Interim Filings Full Certificate

Exhibit 99.4 Form 52-109FV2 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, 2024. 2. No misrepresentations: Based on my kn

May 9, 2024 EX-99.2

Management’s Discussion and Analysis FOR THE THREE AND NINE MONTHS ENDED MARCH 31, 2024

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE AND NINE MONTHS ENDED MARCH 31, 2024 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Three and Nine Months Ended March 31, 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 May 7, 2024 and it should

May 9, 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 (Addr

May 9, 2024 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three and nine months ended March 31, 2024 and 2023

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three and nine months ended March 31, 2024 and 2023 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at March 31, 2024 and June 30, 2023 (Expressed in thousands of Canadian Dollars – unaudited) March 31, June 30, 2024 2023 ASSETS Current assets Cash $

May 8, 2024 EX-99.1

Standard Lithium and Equinor Form Partnership to Develop South West Arkansas and East Texas Lithium Projects Equinor Commits to Contribute up to a US$160 million Gross Investment for a 45% interest in two special purpose entities with SLI to develop

EXHIBIT 99.1 Standard Lithium and Equinor Form Partnership to Develop South West Arkansas and East Texas Lithium Projects Equinor Commits to Contribute up to a US$160 million Gross Investment for a 45% interest in two special purpose entities with SLI to develop a sustainable lithium business in the United States VANCOUVER, British Columbia, May 08, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“

May 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 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

April 26, 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 April 2024 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 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Addre

April 26, 2024 EX-99.1

TSX TRUST

Exhibit 99.1 TSX TRUST COMPANY VIA ELECTRONIC TRANSMISSION April 19, 2024 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 Meetin

April 24, 2024 EX-99.1

Standard Lithium Successfully Commissions First Commercial-Scale DLE Column in North America Commercial-Scale DLE Column Now Commissioned and Operational at SLI’s Demonstration Plant in Arkansas Utilizing Koch Technology Solutions Li-Pro LSS Unit

EXHIBIT 99.1 Standard Lithium Successfully Commissions First Commercial-Scale DLE Column in North America Commercial-Scale DLE Column Now Commissioned and Operational at SLI’s Demonstration Plant in Arkansas Utilizing Koch Technology Solutions Li-Pro LSS Unit EL DORADO, Ark., April 24, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI

April 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 April 2024 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 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Addre

April 15, 2024 EX-99.1

STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE

Exhibit 99.1 STANDARD LITHIUM PROVIDES QUARTERLY ATM SALES UPDATE VANCOUVER, BC, April 12, 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

April 15, 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 April 2024 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 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Addre

March 14, 2024 EX-99.1

Standard Lithium Installs Commercial DLE Column at Demonstration Plant Further Derisks DLE Process With Testing Planned Using Full-Scale Commercial Equipment Over the Next 6 Months

EXHIBIT 99.1 Standard Lithium Installs Commercial DLE Column at Demonstration Plant Further Derisks DLE Process With Testing Planned Using Full-Scale Commercial Equipment Over the Next 6 Months EL DORADO, Ark., March 13, 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

March 14, 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 March 2024 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 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Addre

February 22, 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 February 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 February 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Ad

February 22, 2024 EX-99.1

Standard Lithium to Participate in Upcoming Industry Conferences

EXHIBIT 99.1 Standard Lithium to Participate in Upcoming Industry Conferences VANCOUVER, British Columbia, Feb. 21, 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 senior leadership participation in the following upcoming industry conferences: Event B

February 9, 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 February 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 February 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Ad

February 9, 2024 EX-99.1

Standard Lithium Spearheads Arkansas Lithium Innovation Summit Arkansas Governor Sarah Huckabee Sanders, Secretary of Commerce Hugh McDonald, and U.S. Senator John Boozman to Deliver Keynotes at Sold-Out Summit

EXHIBIT 99.1 Standard Lithium Spearheads Arkansas Lithium Innovation Summit Arkansas Governor Sarah Huckabee Sanders, Secretary of Commerce Hugh McDonald, and U.S. Senator John Boozman to Deliver Keynotes at Sold-Out Summit LITTLE ROCK, Ark., Feb. 09, 2024 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commerc

February 8, 2024 EX-99.2

Management’s Discussion and Analysis FOR THE THREE AND SIX MONTHS ENDED DECEMBER 31, 2023

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE AND SIX MONTHS ENDED DECEMBER 31, 2023 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Three and Six Months Ended December 31, 2023 INTRODUCTION The following management’s discussion and analysis (“MD&A”) for Standard Lithium Ltd. was prepared by management based on information available as of February 6, 2024 and i

February 8, 2024 EX-99.5

February 8 2024

Exhibit 99.5 February 8 2024 STANDARD LITHIUM REPORTS FISCAL SECOND QUARTER 2024 RESULTS, SCHEDULES INVESTOR UPDATE CALL COMPANY CONTINUES TO ADVANCE STRATEGIC AND COMMERCIAL DISCUSSIONS; REPORTS NO DEBT OBLIGATIONS AND CASH ON-HAND February 8, 2024 Vancouver, British Columbia. – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-co

February 8, 2024 EX-99.3

Form 52-109FV2 Certification of Interim Filings Venture Issuer Basic Certificate

Exhibit 99.3 Form 52-109FV2 Certification of Interim Filings Venture Issuer Basic Certificate I, Robert Mintak, 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 December 31, 2023. 2. No misrepresentati

February 8, 2024 EX-99.4

Form 52-109FV2 Certification of Interim Filings Full Certificate

Exhibit 99.4 Form 52-109FV2 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 December 31, 2023. 2. No misrepresentations: Based on my

February 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 February, 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

February 8, 2024 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three and six months ended December 31, 2023 and 2022

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three and six months ended December 31, 2023 and 2022 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at December 31, 2023 and June 30, 2023 (Expressed in thousands of Canadian Dollars – unaudited) December 31, June 30, 2023 2023 ASSETS Current asset

January 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 January 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 January 2024 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Add

January 24, 2024 EX-99.1

Standard Lithium Advances South West Arkansas Project: Definitive Feasibility Study and Front-End Engineering Design Firm Chosen

EXHIBIT 99.1 Standard Lithium Advances South West Arkansas Project: Definitive Feasibility Study and Front-End Engineering Design Firm Chosen VANCOUVER, British Columbia, Jan. 24, 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 the selection of Ausenc

January 12, 2024 EX-99.1

STANDARD LITHIUM ANNOUNCES QUARTERLY AT-THE-MARKET OFFERING UPDATE

Exhibit 99.1 STANDARD LITHIUM ANNOUNCES QUARTERLY AT-THE-MARKET OFFERING UPDATE VANCOUVER, BC, January 12, 2024 – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLI) (NYSE American: SLI), a leading near-commercial lithium company, is pleased to provide a quarterly update with respect to the Company’s previously announced “at-the-market” equity program (the “ATM Program”) launch

January 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 January 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 (A

December 4, 2023 EX-99.1

Standard Lithium Provides Update on Phase 1A Commercialization Progress, Announces Engagement of Citi for Strategic Financing and Partnerships

EXHIBIT 99.1 Standard Lithium Provides Update on Phase 1A Commercialization Progress, Announces Engagement of Citi for Strategic Financing and Partnerships EL DORADO, Ark., Dec. 04, 2023 (GLOBE NEWSWIRE) - 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 provide an update on

December 4, 2023 EX-99.1

Standard Lithium to Participate in December Investor Conferences

EXHIBIT 99.1 Standard Lithium to Participate in December Investor Conferences VANCOUVER, British Columbia, Dec. 04, 2023 (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 its participation in the following virtual December investor conferences: Event: Deustc

December 4, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Ad

December 4, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Ad

November 24, 2023 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 November 17, 2023 ITEM 3 News Release A news release announcing the material change was disseminated on November 17, 2023 and subsequently filed on SEDAR+. ITEM 4 Summary of

November 24, 2023 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 2023 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 22, 2023 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 November, 2023 Commission File Number 001-40569 Standard Lithium Ltd. (Translation of registrant’s name into English) Suite 1625, 1075 W Georgia Street Vancouver, British Colum

November 22, 2023 EX-99.2

Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2023

Exhibit 99.2 Management’s Discussion and Analysis FOR THE THREE MONTHS ENDED SEPTEMBER 30, 2023 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Three Months Ended September 30, 2023 INTRODUCTION The following management’s discussion and analysis (“MD&A”) for Standard Lithium Ltd. was prepared by management based on information available as of November 7, 2023 and it should be re

November 22, 2023 EX-99.5

STANDARD LITHIUM REPORTS FISCAL FIRST QUARTER 2024 RESULTS

Exhibit 99.5 November 9, 2023 STANDARD LITHIUM REPORTS FISCAL FIRST QUARTER 2024 RESULTS November 9, 2023 – Vancouver, BC, Canada – 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 2024 ended September 30, 2023. “This quart

November 22, 2023 EX-99.3

Form 52-109FV2 Certification of Interim Filings Venture Issuer Basic Certificate

Exhibit 99.3 Form 52-109FV2 Certification of Interim Filings Venture Issuer Basic Certificate I, Robert Mintak, 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, 2023. 2. No misrepresentat

November 22, 2023 EX-99.4

Form 52-109FV2 Certification of Interim Filings Full Certificate

Exhibit 99.4 Form 52-109FV2 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, 2023. 2. No misrepresentations: Based on m

November 22, 2023 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three months ended September 30, 2023 and 2022

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three months ended September 30, 2023 and 2022 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at September 30, 2023 and June 30, 2023 (Expressed in thousands of Canadian Dollars – unaudited) September 30, June 30, 2023 2023 ASSETS Current assets Cas

November 20, 2023 EX-99.1

Standard Lithium Provides Comprehensive Results of Its Fully Optimized and Proven DLE Process Ready to Scale: Setting the Pace in the Smackover With a Tested, Optimized and Proven DLE Process and a Highly Skilled Operations Team

EXHIBIT 99.1 Standard Lithium Provides Comprehensive Results of Its Fully Optimized and Proven DLE Process Ready to Scale: Setting the Pace in the Smackover With a Tested, Optimized and Proven DLE Process and a Highly Skilled Operations Team EL DORADO, Ark., Nov. 20, 2023 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a lead

November 20, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Ad

November 20, 2023 EX-99.1

STANDARD LITHIUM LTD. COMMON SHARES SALES AGREEMENT

Exhibit 99.1 Execution Version STANDARD LITHIUM LTD. COMMON SHARES SALES AGREEMENT November 17, 2023 Citigroup Global Markets Inc. 388 Greenwich Street New York, New York 10013 Canaccord Genuity LLC 99 High Street, 12th Floor Boston, Massachusetts 02110 Canaccord Genuity Corp. 40 Temperance Street, Suite 2100 Toronto, ON M5H 0B4 Ladies and Gentlemen: Standard Lithium Ltd. (the “Company”), confirms

November 20, 2023 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 2023 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 20, 2023 EX-99.2

STANDARD LITHIUM ANNOUNCES US$50 MILLION AT-THE-MARKET EQUITY OFFERING PROGRAM

Exhibit 99.2 STANDARD LITHIUM ANNOUNCES US$50 MILLION AT-THE-MARKET EQUITY OFFERING PROGRAM VANCOUVER, BC, November 17, 2023 – 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”) that allows the Company to issue and sell, fr

November 17, 2023 EX-99.1

Form 51-102F6 STATEMENT OF EXECUTIVE COMPENSATION (for the year ended June 30, 2023)

Exhibit 99.1 Form 51-102F6 STATEMENT OF EXECUTIVE COMPENSATION (for the year ended June 30, 2023) 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, 2023. This Statement of Executive Compensation is dated for reference November 17,

November 17, 2023 EX-99.5

CONSENT OF SUSAN B. PATTON

Exhibit 99.5 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 "NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, with an effective date of August 18, 2023 (the “Technical Report”) and the incorp

November 17, 2023 EX-99.3

CONSENT OF CHARLES DANIEL CAMPBELL

Exhibit 99.3 CONSENT OF CHARLES DANIEL CAMPBELL 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 for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, with an effective date of August 18, 2023 (the “Technical Report”) and th

November 17, 2023 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, 2023 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 17, 2023 EX-99.6

CONSENT OF MIKE ROCKANDEL

Exhibit 99.6 CONSENT OF MIKE ROCKANDEL 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 for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, with an effective date of August 18, 2023 (the “Technical Report”) and the incorpo

November 17, 2023 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 2023 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 17, 2023 SUPPL

PROSPECTUS SUPPLEMENT dated November 17, 2023 to the Short Form Base Shelf Prospectus dated July 26, 2023

Filed Pursuant to General Instruction II.L of Form F-10 File No. 333-273462 PROSPECTUS SUPPLEMENT dated November 17, 2023 to the Short Form Base Shelf Prospectus dated July 26, 2023 New Issue November 17, 2023 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 acco

November 17, 2023 EX-99.1

CONSENT OF RANDAL M. BRUSH

Exhibit 99.1 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 "NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, with an effective date of August 18, 2023 (the “Technical Report”) and the incorp

November 17, 2023 EX-99.4

CONSENT OF FRANK GAY

Exhibit 99.4 CONSENT OF FRANK GAY 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 for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, with an effective date of August 18, 2023 (the “Technical Report”) and the incorporatio

November 17, 2023 EX-99.2

CONSENT OF ROBERT E. WILLIAMS, JR.

Exhibit 99.2 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 "NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant" dated October 18, 2023, with an effective date of August 18, 2023 (the “Technical Report”) and th

November 14, 2023 EX-99.1

Standard Lithium Anchors U.S. Lithium Leadership in Smackover Formation, Arkansas, as Global Energy Players Enter the Region

EXHIBIT 99.1 Standard Lithium Anchors U.S. Lithium Leadership in Smackover Formation, Arkansas, as Global Energy Players Enter the Region VANCOUVER, British Columbia, Nov. 14, 2023 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium company, today highlighted its strategic position in the Smackov

November 14, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Ad

November 13, 2023 EX-99.1

Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three months ended September 30, 2023 and 2022

Exhibit 99.1 Condensed Consolidated Interim Financial Statements (Expressed in Canadian dollars - unaudited) Three months ended September 30, 2023 and 2022 STANDARD LITHIUM LTD. Condensed Consolidated Interim Statements of Financial Position As at September 30, 2023 and June 30, 2023 (Expressed in thousands of Canadian Dollars – unaudited) September 30, June 30, 2023 2023 ASSETS Current assets Cas

November 13, 2023 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, 2023 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

October 31, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Add

October 31, 2023 EX-99.1

Standard Lithium Exercises Option Agreement on South West Arkansas Project, Solidifying Path Forward Following Positive Feasibility Study and Rising Regional Interest Action Paves Way for Feed Phase, Highlighting Scale and Robust Project Economics

EXHIBIT 99.1 Standard Lithium Exercises Option Agreement on South West Arkansas Project, Solidifying Path Forward Following Positive Feasibility Study and Rising Regional Interest Action Paves Way for Feed Phase, Highlighting Scale and Robust Project Economics VANCOUVER, British Columbia, Oct. 31, 2023 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE

October 25, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Add

October 25, 2023 EX-99.1

Standard Lithium Delivers Highest-Ever North American Lithium Brine Grade 806 mg/L; East Texas Asset Includes Significant Potash and Bromine Concentrations

EXHIBIT 99.1 Standard Lithium Delivers Highest-Ever North American Lithium Brine Grade 806 mg/L; East Texas Asset Includes Significant Potash and Bromine Concentrations EL DORADO, Ark., Oct. 25, 2023 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium company, today reported another significant m

October 18, 2023 EX-99.8

October 18, 2023

Exhibit 99.8 October 18, 2023 CONSENT OF QUALIFIED PERSON I, Susan B. Patton, consent to the public filing of the technical report titled Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant, with an effective date of August 18, 2023, (the Technical Report) by Standard Lithium Ltd. of Vancouver, British Columbia, Canada. I also consent to the use of extracts

October 18, 2023 EX-99.7

October 18, 2023

Exhibit 99.7 October 18, 2023 CONSENT OF QUALIFIED PERSON I, Robert E. Williams, Jr., consent to the public filing of the technical report titled NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant, with an effective date of August 18, 2023, (the Technical Report) by Standard Lithium Ltd. of Vancouver, British Columbia, Can

October 18, 2023 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 NI 43-101 Technical Report for the Definitive Feasibility Study for commercial lithium extraction plant at lanxess south plant REPORT RSI-3353 Prepared by Randal M. Brush, PE (William M. Cobb & Associates, Inc.) Charles Daniel Campbell, PE (Alliance Technical Group) Frank Gay, PE (Hunt, Guillot & Associates, LLC) Susan B. Patton, PE (RESPEC Company, LLC) Mike Rockandel, RM-SME (Mike R

October 18, 2023 EX-99.3

October 18, 2023

Exhibit 99.3 October 18, 2023 CONSENT OF QUALIFIED PERSON I, Charles Daniel Campbell, consent to the public filing of the technical report titled NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant, with an effective date of August 18, 2023, (the Technical Report) by Standard Lithium Ltd. of Vancouver, British Columbia, Can

October 18, 2023 EX-99.4

October 18, 2023

Exhibit 99.4 October 18, 2023 CONSENT OF QUALIFIED PERSON I, Frank Gay, consent to the public filing of the technical report titled NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant, with an effective date of August 18, 2023, (the Technical Report) by Standard Lithium Ltd. of Vancouver, British Columbia, Canada. I also co

October 18, 2023 EX-99.1

October 18, 2023

Exhibit 99.1 October 18, 2023 STANDARD LITHIUM FILES DEFINITIVE FEASIBILITY STUDY FOR ITS FIRST COMMERCIAL LITHIUM EXTRACTION PLANT – PHASE 1A October 18, 2023 – El Dorado, AR, USA – Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L), a leading near-commercial lithium company, today announced that the Definitive Feasibility Study (the “Report”) for

October 18, 2023 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 2023 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

October 18, 2023 EX-99.5

October 18, 2023

Exhibit 99.5 October 18, 2023 CONSENT OF QUALIFIED PERSON I, Mike Rockandel, consent to the public filing of the technical report titled NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant, with an effective date of August 18, 2023, (the Technical Report) by Standard Lithium Ltd. of Vancouver, British Columbia, Canada. I al

October 18, 2023 EX-99.6

October 18, 2023

Exhibit 99.6 October 18, 2023 CONSENT OF QUALIFIED PERSON I, Randal M. Brush, consent to the public filing of the technical report titled NI 43-101 Technical Report for the Definitive Feasibility Study for Commercial Lithium Extraction Plant at LANXESS South Plant, with an effective date of August 18, 2023, (the Technical Report) by Standard Lithium Ltd. of Vancouver, British Columbia, Canada. I a

October 10, 2023 EX-99.1

Standard Lithium’s East Texas Drilling Program Delivers New Highest Confirmed Grade Lithium Brine in North America Results Include Lithium Concentrations of 663 mg/L; Company Continues to Expand and De-Risk East Texas Smackover Assets

EXHIBIT 99.1 Standard Lithium’s East Texas Drilling Program Delivers New Highest Confirmed Grade Lithium Brine in North America Results Include Lithium Concentrations of 663 mg/L; Company Continues to Expand and De-Risk East Texas Smackover Assets EL DORADO, Ark., Oct. 10, 2023 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV:SLI) (NYSE American:SLI) (FRA:S5L),

October 10, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Add

October 5, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (Add

October 5, 2023 EX-99.1

Standard Lithium Appoints Michael Barman as Chief Development Officer to Lead Late-Stage Commercial Discussions Barman to Lead a Dedicated Team Responsible for Closing Ongoing Off-Take Arrangements, Project Financing and Project-Level Investments

EXHIBIT 99.1 Standard Lithium Appoints Michael Barman as Chief Development Officer to Lead Late-Stage Commercial Discussions Barman to Lead a Dedicated Team Responsible for Closing Ongoing Off-Take Arrangements, Project Financing and Project-Level Investments VANCOUVER, British Columbia, Oct. 05, 2023 (GLOBE NEWSWIRE) - Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (NYSE American:SLI

September 25, 2023 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 2023 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 2023 Commission File Number: 001-40569 Standard Lithium Ltd. (Translation of registrant's name into English) Suite 110, 375 Water Street Vancouver, British Columbia, Canada V6B 5C6 (A

September 25, 2023 EX-99.1

Standard Lithium Strengthens C-Suite: Salah Gamoudi Appointed CFO, Kara Norman Steps Into New Role as CAO

EXHIBIT 99.1 Standard Lithium Strengthens C-Suite: Salah Gamoudi Appointed CFO, Kara Norman Steps Into New Role as CAO VANCOUVER, British Columbia, Sept. 25, 2023 (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 an enhanced C-suite with the addition of Salah Gamoudi as

September 22, 2023 EX-99.17

CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC

Exhibt 99.17 CONSENT OF HUNT, GUILLOT & ASSOCIATES, LLC 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 August 8, 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 Li

September 22, 2023 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, 2023, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert Mintak, Chief Exec

September 22, 2023 EX-99.10

CONSENT OF MAREK DWORZANOWSKI

Exhibit 99.10 CONSENT OF MAREK DWORZANOWSKI The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Reports titled “Preliminary Economic Assessment of LANXESS Smackover Project” dated August 1, 2019 and "South West Arkansas Project Pre-Feasibility Study" dated August 8, 2023, which are included in, or incorporated by reference into, the Annua

September 22, 2023 EX-99.14

CONSENT OF STEPHEN ROSS

Exhibit 99.14 CONSENT OF STEPHEN 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 Annual Report on Form 40-F, and any amendments and exhibits thereto, of Standard Lithium Ltd. (the “Company”) for the year ended June 30, 2023 (collectively, the “Annual Report”). The und

September 22, 2023 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, Kara Norman, 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

September 22, 2023 EX-99.9

Consent of Independent Registered Public Accounting Firm

Exhibit 99.9 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, 2023 of Standard Lithium Ltd. of our report dated September 21, 2023, relating to the consolidated financial statements, which appears in the Exhibit incorporated by reference in this Annual Report. We also consent

September 22, 2023 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, 2023 Commission File Number 001-40569 Standard Lithium Ltd. (Exact name of Registrant as specified in i

September 22, 2023 EX-99.13

CONSENT OF ROY ECCLES

Exhibit 99.13 CONSENT OF ROY ECCLES The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled “Preliminary Economic Assessment of LANXESS Smackover Project” dated August 1, 2019, 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 22, 2023 EX-99.16

CONSENT OF WILLIAM M. COBB & ASSOCIATES, INC.

Exhibit 99.16 CONSENT OF WILLIAM M. COBB & ASSOCIATES, INC. 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 August 8, 2023, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, and any amendments and exhibits thereto, of Standar

September 22, 2023 EX-99.3

Consolidated Financial Statements (Expressed in Canadian dollars) Years ended June 30, 2023 and 2022

Exhibit 99.3 Consolidated Financial Statements (Expressed in Canadian dollars) Years ended June 30, 2023 and 2022 Report of Independent Registered Public Accounting Firm To the Shareholders and Board of Directors of Standard Lithium Ltd. Opinion on the Financial Statements We have audited the accompanying consolidated statement of financial position of Standard Lithium Ltd. and its subsidiaries (t

September 22, 2023 EX-99.11

CONSENT OF WORLEY CANADA SERVICES LTD.

Exhibit 99.11 CONSENT OF WORLEY CANADA SERVICES LTD. The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled “Preliminary Economic Assessment of LANXESS Smackover Project” dated August 1, 2019, which is included in, or incorporated by reference into, the Annual Report on Form 40-F, and any amendments and exhibits thereto, of Sta

September 22, 2023 EX-99.15

CONSENT OF ALLIANCE TECHNICAL GROUP, LLC

Exhibit 99.15 CONSENT OF ALLIANCE TECHNICAL GROUP, LLC 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 August 8, 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 Lit

September 22, 2023 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, Robert Mintak, 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 22, 2023 EX-99.2

Management’s Discussion and Analysis FOR THE YEAR ENDED JUNE 30, 2023

Exhibit 99.2 Management’s Discussion and Analysis FOR THE YEAR ENDED JUNE 30, 2023 STANDARD LITHIUM LTD. Management’s Discussion and Analysis For the Year Ended June 30, 2023 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 21, 2023 and it should be reviewed in conjunction wi

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