Copper Giant Announces Updated Mocoa Inferred Mineral Resource of 1.1 Billion Tonnes at 0.51% CuEq* (0.31% Cu and 0.039% Mo)

The November 24, 2025 news release announces a significantly updated NI 43-101 Inferred Mineral Resource Estimate for the Mocoa copper-molybdenum project in Colombia. The new estimate outlines 1.12 billion tonnes at an average grade of 0.51% copper equivalent (CuEq), comprised of 0.31% copper (Cu) and 0.039% molybdenum (Mo).

This represents a major increase compared to the previous resource: a 76% increase in tonnage, a 14% increase in CuEq grade, and a 101% increase in total contained CuEq metal. The total contained metal is now estimated at 7.6 billion pounds of copper and 1.0 billion pounds of molybdenum. The resource also includes a higher-grade core of 190 million tonnes at 0.94% CuEq. The estimate was based on data including 9,525 metres of new drilling.

This is a game-changing resource update that transforms the Mocoa project and the company. The company has successfully executed on its exploration strategy and delivered a result that meets the upper end of expectations.

• Scale: The update elevates Mocoa into the rare category of undeveloped, billion-tonne copper porphyry systems. This significantly increases its strategic importance and attractiveness to major mining companies, especially in a world with a structural deficit of new copper supply.
• De-risking: The new resource is based on new drilling, updated metallurgy, and a refined geological model. It confirms the continuity and grade of the system over a large area. This substantially de-risks the project from a geological standpoint.
• Execution: In May 2025, the company published a conceptual exploration target of 977 to 1,247 million tonnes at 0.49% to 0.55% CuEq. The new resource of 1,120 million tonnes at 0.51% CuEq falls squarely within this guided range, demonstrating management's strong understanding of the deposit and their ability to deliver on projections.
• Context: This geological success follows other major de-risking milestones in 2025, including excellent metallurgical recoveries (up to 92% Cu and 97% Mo) announced in October and the securing of a "full social license" via a Prior Consultation Agreement with the local Inga Condagua indigenous community, also in October.

While the entire resource remains in the Inferred category, which has a lower level of geological confidence, the sheer scale established is the most critical takeaway. The project now has the demonstrated size to be globally significant. The market had been anticipating this update since the company engaged Apex Geoscience in October, and the results are a major positive catalyst.

Copper Giant Resources Corp. is a Canadian mineral exploration company focused on its flagship Mocoa copper-molybdenum project in the department of Putumayo, southern Colombia. The Mocoa project is a large porphyry system that, following the November 24, 2025 update, now hosts one of the largest undeveloped copper resources in the Americas. The company has methodically advanced the project by expanding its land package, conducting extensive drilling, achieving positive metallurgical results, and securing critical social licenses with local communities.