UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 6-K
REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13A-16 OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934
| For the month of | October | 2025 | |
| Commission File Number | 001-40569 |
| Standard Lithium Ltd. |
| (Translation of registrant’s name into English) |
|
Suite 1625, 1075 W Georgia Street Vancouver, British Columbia, Canada V6E 3C9 |
| (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 ¨ Form 40-F x Exhibits 99.1, 99.2, 99.3, 99.4, 99.5 and 99.6 of this Report on Form 6-K are incorporated by reference into the Registration Statement on Form F-10 (File No.
INCORPORATION BY REFERENCE
333-289110) of the Registrant, as amended or supplemented.
DOCUMENTS INCLUDED AS PART OF THIS REPORT
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: | October 16, 2025 | By: | /s/ Salah Gamoudi | ||
| Name: | Salah Gamoudi | ||||
| Title: | Chief Financial Officer | ||||
Exhibit 99.1
CONSENT OF PATRICIO PINTO GALLARDO
The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Report into the Registration Statement on Form F-10 of Standard Lithium Ltd. (File No. 333-289110), as amended.
| /s/ Patricio Pinto Gallardo | |
| Patricio Pinto Gallardo, C.P Principal Process Engineer Ausenco Chile Ltda. |
|
| Date: October 16, 2025 |
Exhibit 99.2
CONSENT OF ALEKSANDAR SPASOJEVIC
The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Report into the Registration Statement on Form F-10 of Standard Lithium Ltd. (File No. 333-289110), as amended.
| /s/ Aleksandar Spasojevic | |
| Aleksandar Spasojevic, P.Eng. Lead Engineer Geotechnics Ausenco Engineering Canada ULC |
|
| Date: October 16, 2025 |
Exhibit 99.3
CONSENT OF RANDAL M. BRUSH
The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Report into the Registration Statement on Form F-10 of Standard Lithium Ltd. (File No. 333-289110), as amended.
| /s/ Randal M. Brush | |
| Randal M. Brush, P.E. Senior Engineering Advisor Haas & Cobb Petroleum Consultants |
|
| Date: October 16, 2025 |
Exhibit 99.4
CONSENT OF ROBERT E. WILLIAMS, JR.
The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Report into the Registration Statement on Form F-10 of Standard Lithium Ltd. (File No. 333-289110), as amended.
| /s/ Robert E. Williams, Jr. | |
| Robert E. Williams, Jr., PG, CPG Principal Geologist Haas & Cobb Petroleum Consultants |
|
| Date: October 16, 2025 |
Exhibit 99.5
CONSENT OF THOMAS WYNN ROGERS, JR.
The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Report into the Registration Statement on Form F-10 of Standard Lithium Ltd. (File No. 333-289110), as amended.
| /s/ Thomas Wynn Rogers, Jr. | |
| Thomas Wynn Rogers, Jr., P.E. Vice President – Integrated Services Hunt, Guillot & Associates, LLC |
|
| Date: October 16, 2025 |
Exhibit 99.6
CONSENT OF RICHARD DELONG
The undersigned hereby consents to the use of the undersigned’s name and information derived from the Technical Report titled "South West Arkansas Project NI 43-101 Technical Report & Definitive Feasibility Study" dated October 14, 2025, with an effective date of September 3, 2025 (the “Technical Report”) and the incorporation by reference of the Technical Report into the Registration Statement on Form F-10 of Standard Lithium Ltd. (File No. 333-289110), as amended.
| /s/ Richard DeLong | |
| Richard DeLong, P.G. Senior Technical Advisor Trinity Consultants Inc. |
|
| Date: October 16, 2025 |