Riken Vitamin Co., Ltd. engages in the production and sale of consumer and commercial foods, processed food ingredients, food and chemical improvers, and vitamins. It operates through the following segments: Domestic Food, Domestic Chemicals and Others. The Domestic Food segment handles the household food products, commercial food products, and food processing raw materials. The Domestic Chemicals segment manufactures chemical modifiers and feed additives. The Others segment provides healthcare products, chemical improving agents, marine processed foods, and frozen vegetables. The company was founded on August 27, 1949 and is headquartered in Tokyo, Japan.