Oriental Chain Mfg. Co., Ltd. engages in the manufacture and sale of roller chains for industrial use. It operates through the following segments: Chain, Metal Injection Molding, and Others. The Chain segment manufactures roller and transport chains, conveyors, and sprockets. The Metal Injection Molding segment sells precision equipment and related materials manufactured through metal injection molding. The Others segment includes real estate leasing business. The company was founded by Yoshiharu Matsuda on August 26, 1947 and is headquartered in Hakusan, Japan.