Mitsui Kinzoku. 

Mitsui Kinzoku Co., Ltd. operates as a key manufacturer and supplier of functional materials, electronic materials, and components for the automotive sector. The company structures its operations across four primary divisions: Engineered Materials, Metals, Automotive Parts and Components, and Affiliates Coordination. The Engineered Materials segment is responsible for producing battery-related substances, catalysts designed for exhaust gas purification, specialized functional powders, copper foil, and various ceramic goods. The Metals division deals with the provision of base and precious metals like zinc, lead, copper, gold, and silver, alongside engaging in resource recycling activities. Within the Automotive Parts and Components division, the core focus is on the production and distribution of door locks for vehicles. Lastly, the Affiliates Coordination division oversees products stemming from die casting, powder metallurgy, copper, and pearlite. Mitsui Kinzoku, which was founded in September 1874, has its corporate headquarters situated in Tokyo, Japan.