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 |
August |
|
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 ¨
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to the extent not superseded by documents or reports subsequently filed or furnished.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 |
Press Release of MAC Copper Limited dated August 8, 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.
| |
|
MAC COPPER LIMITED |
| |
|
(Registrant) |
| |
|
|
| Date: |
August 8, 2025 |
|
By: |
/s/ Michael James McMullen |
| |
|
|
Name: Michael James McMullen |
| |
|
|
Title: Chief Executive Officer |
