MMC Norilsk Nickel (Nornickel)(GMKN)
PJSC Mining and Metallurgical Company Norilsk Nickel (Moscow; MOEX: GMKN; ~$12B revenue) is the world's largest nickel and palladium producer and produces cobalt sulfate as a byproduct of nickel refining at its Kola Peninsula operations (Monchegorsk, Murmansk Oblast) and Norilsk complex (Krasnoyarsk Krai). Nornickel's Kola MMC refinery produces cobalt sulfate from cobalt-bearing matte generated at Norilsk nickel smelters. Pre-2022, Nornickel supplied cobalt sulfate to European and Asian battery manufacturers. Post-February 2022 Russian invasion of Ukraine, Nornickel's cobalt sulfate has been largely excluded from Western supply chains due to sanctions and reputational risk — but continues supplying Chinese battery manufacturers (CATL, BYD, CALB) who are not bound by Western sanctions. Nornickel's ~3-4% global cobalt sulfate share is now effectively China-destined.