Complex sentence: Outokumpu is a group of companies headquartered in Espoo, Finland, producing stainless steel and high performance alloys, employing more than 12,000 employees in more than 30 countries.
Split into simpler sentences: Outokumpu is a group of companies headquartered in Espoo, Finland, producing stainless steel. The company manufactures stainless steel and high performance alloys, and employs more than 12,000 employees in more than 30 countries.