MAC Copper Unveils 12-Year Mine Plan, Boosts Copper and Zinc Reserves

MAC Copper Limited ARBN 671 963 198 (NYSE:MTAL, ASX:MAC))), a private limited company incorporated under the laws of Jersey, Channel Islands ("MAC" or the "Company") is pleased to release its Resource and Reserve Statement (as at 31 December 2024) ("R+R") and 2 Year Production Guidance for the CSA Copper Mine in NSW.

 

In accordance with Item 1300 of Regulation S-K (17 CFR Part 229) ("S-K 1300"), all Mineral Resources are reported exclusive of Mineral Reserves.

Resource and Reserve Statement

Highlights from the R+R include:

• Updated to 12-years (end of 2036) based on Mineral Reserves only
• Contained copper ("Cu") in Mineral Reserves (Refer Table 4 for breakdown) of 545kt Cu at an average grade of 3.4% Cu and 13.3 g/t Ag
• Contained Cu of 464kt in total Mineral Resources (Refer Table 2 for breakdown) at an average grade of 5.4% Cu and 19 g/t Ag
• Inaugural zinc ("Zn") resource of 173kt of contained Zn (plus Cu, Pb and Ag) in the upper portion of the mine at a grade of 7.3% Zn, 0.6% Cu, 2.2% Pb and 23 g/t Ag (Refer Table 3 for breakdown)
• 2024 Mineral Reserve only extends 70m vertically below the current decline position requiring only minimal annual development
• New resources in the upper portions of the mine being incorporated into a new mine to be developed in the shallow portion of the mine, refer below for discussion on the new "Merrin Mine" - lowest cost and lowest risk option to increase group production by filling the mill
• All deposits are open in at least one direction and drilling is continuing to further increase the R+R, subject to exploration success and economic factors

The effective date for the R+R is 31 December 2024 and as such, any new information received after that time has not been incorporated into the R+R at this stage.