Outotec Oyj (Outokumpu Technology prior to 24 April 2007) is a Finnish company, headquartered in Espoo, aimed at providing technologies and services for the metal and mineral processing industries. The firm concentrates on producing machines and methods which facilitate the various stages of extractive metallurgy and mineral processing from ore through to pure metal or mineral, including the grinding and physical separation of ores and the smelting and leaching of base and precious metals.