Generation Mining Announces Feasibility Study Report Update for the

Generation Mining Limited (TSX: GENM; OTCQB: GENMF) (“Gen Mining” or the “Company”) is pleased to announce positive results on the updated Feasibility Study (“2025 FS” or the “Feasibility Study”) for the Marathon Copper-Palladium Project (the “Project”) located near the Town of Marathon in Northwestern Ontario. All dollar amounts are in Canadian dollars (“$” or “C$”) unless otherwise stated. All references to “Mlbs” are to millions of pounds and “Moz” are to millions of troy ounces and “koz” are to thousands of troy ounces.

Highlights:

• Robust Base Case economics1: An after-tax NPV6% of $1.07 billion, IRR of 28% and 1.9 year payback period based on the 3-yr trailing average metal prices at the effective date2
• Strong critical mineral production during pre-production and the first three years of commercial operation: 151 Mlbs of payable copper, 720 koz of payable palladium and 156 koz of platinum
• Initial Capital: C$992 million3
• Attractive AISC:Life of mine (“LOM”) all-in sustaining costs (“AISC”) of US$2.05/CuEq lb or US$781/PdEq oz3
• At recent long-term consensus prices2: An after-tax NPV6% of $876 million, IRR of 24% and 2.2 year payback period, with 41% of payable metal revenues attributable to copper and 41% attributable to palladium
• At recent spot prices2: An after-tax NPV6% of $749 million, IRR of 21% and 2.4 year payback period, with 44% of payable metal revenues attributable to copper and 37% attributable to palladium.
• Average annual payable metals: 42 Mlbs copper,168 koz palladium, 38 koz platinum, 12 koz gold and 240 koz silver over approximately 13 years of mine life
• Jobs: Creation of over 800 jobs during construction and over 400 direct permanent jobs during operations
• The Next Critical Mineral, Shovel-Ready Project: Fully Permitted for Construction federally and waiting for approval on last permit from the Government of Ontario.