Copper by Country: Mining Is Spread Out, Refining Is Not
Chile leads copper mining at 23 percent, but China alone refines 14 million tonnes a year, more than the next several countries combined.
Copper is the clearest contrast among these four materials between how spread out mining is and how concentrated refining is, a distinction directly relevant to any resilience model that treats “copper supply” as a single number rather than two separate stages.
Mine production is genuinely diversified
Global copper mine production in 2024 was led by Chile, followed by DR Congo, Peru, and China, with the United States and Indonesia each near 4.8 percent. No single country holds a majority, largely a reflection of the porphyry deposit geology covered on this material’s geology page occurring across multiple continents.
Refining tells the opposite story
Refined copper production is far more concentrated: China alone refines on the order of 14 million tonnes annually, dwarfing the next producers, DR Congo at roughly 2.0 million tonnes and Japan at roughly 1.5 million tonnes, with Chile close behind at 1.3 million tonnes and the rest of the world contributing around 8.2 million tonnes combined. This means China’s refining share alone exceeds the combined mine output of the next several producing countries, a gap this material’s economics page quantifies directly (mining HHI ≈ 1,581 versus refining HHI ≈ 3,727).
DR Congo appears in both, for a specific reason
DR Congo’s strong showing in both mine and refined copper production connects directly to the copper-cobalt co-production relationship covered on cobalt’s country page, since much DRC copper ore comes from the same Copperbelt deposits that yield cobalt as a by-product.
Sources: mine and refined production figures reference this project’s own verified production data (USGS Mineral Commodity Summaries 2025).