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UNITED STATES
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 | 2026 | |
| Commission File Number | 001-40569 |
| Standard Lithium Ltd. |
| (Translation of registrant’s name into English) |
|
Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 |
| (Address of principal executive offices) |
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F:
Form 20-F o Form 40-F x
INCORPORATION BY REFERENCE
Exhibit 99.1 of this Report on Form 6-K is incorporated by reference into the Registration Statements on Form F-10EF (File No. 333-289110) and Form S-8 (File No. 333-262400) of the Registrant, as amended or supplemented.
DOCUMENTS INCLUDED AS PART OF THIS REPORT
| Exhibit | |
| 99.1 | Material change report, dated September 15, 2026. |
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
| Standard Lithium Ltd. | |||||
| (Registrant) | |||||
|
Date: |
September 21, 2026 |
By: |
/s/ Salah Gamoudi |
||
| Name: | Salah Gamoudi | ||||
| Title: | Chief Financial Officer | ||||
Exhibit 99.1
FORM 51-102F3
MATERIAL CHANGE REPORT
| Item 1. | Name and Address of Company |
| Standard Lithium Ltd. (the “Company”) | |
| Suite 1625 – 1075 West Georgia Street | |
| Vancouver, BC V6E 3C9 | |
| Item 2. | Date of Material Change |
| September 11, 2026 | |
| Item 3. | News Release |
| The news release was disseminated by Globe Newswire on September 11, 2026, and was subsequently filed on SEDAR+. | |
| Item 4. | Summary of Material Change |
| The Company announced that Karen Narwold will resign from the Company’s Board of Directors (the “Board”), effective September 15, 2026. | |
| Item 5. | Full Description of Material Change |
| The Company announced that Karen Narwold will resign from the Board, effective September 15, 2026, following her acceptance of a new executive position and the increased time commitments associated with her new role. | |
| Following Ms. Narwold’s resignation, the Board will consist of eight directors. The Company has initiated a search process for a new independent director that will complement the Board’s existing experience and expertise and support the Company’s continued growth and strategic objectives. The Company intends to announce an appointment following the conclusion of this process. | |
| 5.2 | Disclosure for Restructuring Transactions |
| Not applicable. | |
| Item 6. | Reliance on Subsection 7.1(2) of National Instrument 51-102 |
| Not applicable. | |
| Item 7. | Omitted Information |
| None. | |
| Item 8. | Executive Officer |
| David Park | |
| Chief Executive Officer | |
| (604) 409-8154 | investors@standardlithium.com |
-2-
| Item 9. | Date of Report |
| September 15, 2026 | |
| Cautionary Note Regarding Forward-Looking Statements | |
| This material change report may contain certain “Forward-Looking Statements” within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities laws. When used in this material change report, the words “anticipate”, “believe”, “expect”, “plan”, “intend”, “may”, “will” and other similar words or expressions identify forward-looking statements or information. These forward-looking statements or information may relate to the Company’s intended timeline for onboarding an additional independent director, any new independent director’s ability to complement the Board’s existing experience and expertise, the accuracy of mineral or resource exploration activity at the Company’s flagship projects, and other factors or information. Such statements represent the Company’s current views with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by the Company, are inherently subject to significant business, economic, competitive, political and social risks, contingencies and uncertainties. Many factors, both known and unknown, could cause results, performance or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such forward-looking statements. The Company does not intend, and does not assume any obligation, to update these forward-looking statements or information to reflect changes in assumptions or changes in circumstances or any other events affecting such statements and information other than as required by applicable laws, rules and regulations. |