UNITED STATES

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~~September 2025

Commission file number: 001-38350

Lithium Argentina AG

(Translation of Registrant’'s name into English)

Dammstrasse 19, 6300 Zug,

Switzerland

(Address of Principal Executive Office)

900 West Hastings Street, Suite 310,

Vancouver, British Columbia,

Canada V6C 1E5

(North American Mailing Address)

Indicate by check mark whether the registrant files or will file annual reports under cover:

Form 20-F [X] Form 40-F [ ]

INCORPORATION BY REFERENCE

~~Exhibits~~Exhibit 99.~~1, 99.~~2 ~~and 99.6~~ to this Form 6-K of Lithium Argentina AG (the "Company") ~~are~~is hereby incorporated by reference as ~~exhibits~~an exhibit to the Registration Statement on Form S-8 (File No. 333-282163) of the Company, as amended or supplemented.

SIGNATURE

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.

Lithium Argentina AG (Registrant) By: ~~“Samuel~~"Alex ~~Pigott”~~Shulga" Name: ~~Samuel~~Alex ~~Pigott~~Shulga Title: Vice President and Chief ~~Executive~~Financial Officer

Dated: ~~August~~September 1110, 2025

EXHIBIT INDEX

Exhibit		Description
99.1		~~Condensed~~News ~~Consolidated~~Release ~~Interim~~dated ~~Financial~~August ~~Statements for the three and six months ended June 30~~12, 2025
99.2		~~Management’s~~Material ~~Discussion~~Change ~~and~~Report ~~Analysis~~dated ~~for~~August ~~the three and six months ended June 30~~22, 2025
99.3		~~CEO~~Framework ~~Certification~~Agreement between GFL International Co., Limited and Lithium Argentina AG dated August 12, 2025
99.4		CFO Certification
99.5		News Release dated August 11, 2025
99.6		Consent of David Burga

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