Copper mining companies of Switzerland

Glencore plc is an Anglo-Swiss multinational commodity trading and mining company with headquarters in Baar, Switzerland. Glencore's oil and gas headquarters are in London, England, as well as its primary listing being on the London Stock Exchange, and it is one of the largest components of the FTSE 100 by market capitalization.

Xstrata plc was an Anglo-Swiss multinational mining company headquartered in Zug, Switzerland and with its registered office in London, United Kingdom. It was a major producer of coal (and the world's largest exporter of thermal coal), copper, nickel, primary vanadium and zinc and the world's largest producer of ferrochrome. It had operations in 19 countries across Africa, Asia, Australasia, Europe, North America and South America.