Norilsk Nickel Mining and Metallurgical Company is engaged in exploring, mining, enriching and metallurgical processing of minerals, production, marketing and sales of non-ferrous and precious metals and non-metallic minerals, and manufacturing of construction materials. The Company produces nickel, copper, cobalt, precious metals (platinum group metals, gold and silver), selenium, tellurium, industrial sulphur, coal and other products for technical purposes. The Company's subsidiaries produce such products as electrolytic nickel, carbonyl nickel, cathode copper and metallic cobalt, and platinum group metals, such as platinum, palladium, rhodium, iridium and ruthenium. Electrolytic and carbonyl (powder) nickel, copper, metallic cobalt and cobalt oxides are the main export products of the Company.