Mitsui Kinzoku. 

Mitsui Kinzoku Co., Ltd. manufactures and sells a variety of products, encompassing sophisticated materials, electronic components, and vehicle parts. Its business activities are structured across four primary divisions: Engineered Materials, Metals, Automotive Parts and Components, and Affiliates Coordination. The Engineered Materials division provides products like battery components, catalysts for purifying exhaust gases, specialized powders, copper sheeting, and ceramic items. In the Metals segment, the company supplies commodities such as zinc, lead, copper, gold, and silver, while also conducting resource recycling operations. The Automotive Parts and Components division is dedicated to the production and sale of vehicle door locking mechanisms. Finally, the Affiliates Coordination segment oversees goods related to die casting, powder metallurgy, copper, and pearlite. The enterprise was established in September 1874 and maintains its principal headquarters in Tokyo, Japan.