A Look at the Largest Copper Smelters ThoughtCo
· The Pyshma electrolytic copper refinery first began production in 1934. Located in Sverdlovsk Oblast, Russia, Pyshma is operated by Uralelectromed, the publicly traded arm of Ural Mining and Metallurgical Company. 07. of 11. Yunnan Copper (Yunnan Copper Industry Group)—500 kta . Established in 1958, Yunnan Copper is China''s third largest producer of copperbased on total