Standard Lithium (SLI) 6-K adds material change reports to registrations

Rhea-AI Filing Summary

Standard Lithium Ltd. filed a Form 6-K as a foreign private issuer for October 2025. The report primarily furnishes two material change reports as exhibits and ties them into existing securities registration documents.

The filing states that Exhibits 99.1 and 99.2 are incorporated by reference into the company’s Form F-10EF and Form S-8 registration statements. Exhibit 99.1 is a material change report dated August 15, 2025, and Exhibit 99.2 is a material change report dated September 9, 2025.

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

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              o                 Form 40-F             x

INCORPORATION BY REFERENCE

Exhibits 99.1 and 99.2 of this Report on Form 6-K are 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 August 15, 2025.
99.2	Material change report, dated September 9, 2025.

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 10, 2025		By:	/s/ Salah Gamoudi
				Name:	Salah Gamoudi
				Title:	Chief Financial Officer

FAQ

What does Standard Lithium Ltd. (SLI) report in this Form 6-K?

The Form 6-K from Standard Lithium Ltd. furnishes two material change reports as exhibits. These exhibits are then incorporated by reference into the company’s existing Form F-10EF and Form S-8 registration statements, updating those securities documents with the disclosed changes.

Which exhibits are included in Standard Lithium (SLI) October 2025 Form 6-K?

The Form 6-K includes Exhibit 99.1, a material change report dated August 15, 2025, and Exhibit 99.2, a material change report dated September 9, 2025. Both exhibits are treated as part of specified registration statements.

How are the exhibits in this Standard Lithium (SLI) Form 6-K used?

Exhibits 99.1 and 99.2 are incorporated by reference into Standard Lithium’s Form F-10EF and Form S-8 registration statements. This means the information in those material change reports is legally considered part of those registration documents.

What type of issuer is Standard Lithium Ltd. (SLI) in this filing?

Standard Lithium Ltd. is identified as a foreign private issuer and indicates it files its annual reports under Form 40-F. This classification determines the reporting framework and form types the company uses in U.S. securities markets.

Who signed Standard Lithium (SLI)’s October 2025 Form 6-K?

The Form 6-K is signed on behalf of Standard Lithium Ltd. by Salah Gamoudi, who is identified as the company’s Chief Financial Officer. The signature confirms the company’s authorization of the furnished information in the report.

What is the purpose of this Standard Lithium (SLI) Form 6-K?

The purpose of this Form 6-K is to formally furnish material change reports to U.S. investors and regulators and to incorporate those reports into existing registration statements, maintaining up-to-date disclosure within those offering documents.