Apr 13, 2021 · The world's top five largest copper mining companies by production in 2020. 1. Codelco – million tonnes. Founded in 1955 and nationalised in 1971, Santiagoheadquartered Corporación Nacional del Cobre de Chile, also known as Codelco, is the world's top copper mining company. In 2020, it produced million tonnes of copper, which ...
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