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 | 001-41722 |
| 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 ¨
EXHIBIT INDEX
| Exhibit | Description of Exhibit |
| 99.1 | Press Release of MAC Copper Limited dated October 24, 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: | October 24, 2025 | By: | /s/ Michael James McMullen | ||
| Name: | Michael James McMullen | ||||
| Title: | Chief Executive Officer | ||||