[6-K] MAC Copper Limited Current Report (Foreign Issuer)

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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	July		2025
Commission File Number	001-41722

MAC COPPER LIMITED

(Translation of registrant’s name into English)

3rd Floor, 44 Esplanade

St. Helier, Jersey, JE4 9WG

Tel: +(817) 698-9901

(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  x Form 40-F o

Incorporation By Reference

This Report on Form 6-K, including all exhibits hereto, shall be deemed to be incorporated by reference into the registration statement on Form F-3 (Registration No. 333-276216) (including any prospectuses forming a part of such registration statement) and to be a part thereof from the date on which this report is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.

EXHIBIT INDEX

Exhibit	Description of Exhibit
99.1	June 2025 Quarterly 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.

			MAC COPPER LIMITED
			(Registrant)
Date:	July 23, 2025		By:	/s/ Michael James McMullen
				Name:	Michael James McMullen
				Title:	Chief Executive Officer

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