10. Norilsk Nickel
Norilsk Nickel is a nickel and palladium mining and smelting company. Its largest operations are located in the Norilsk–Talnakh area, in northern Russia. MMC stands for "Mining and Metallurgical Company".
Norilsk Nickel is headquartered in Moscow and is the world's leading producer of nickel and palladium. The company is also active in platinum, copper and cobalt. It is ranked among the top four world platinum producers, in association with subsidiary Stillwater Mining Company of Billings, Montana. It is ranked among the top ten copper producers.