ONEX Corporation provides metal heat treatment, remediation, and processing services in Japan and internationally. The company offers metal heat treatment services, including carburizing, carbonitriding, vacuum, high frequency, bright heat, and aluminum alloy heat treatment. Its metal heat treatment services also consist of quenching and tempering, nitriding, gas nitrocarburizing, shot peening, and PVD coating treatment services, as well as heat treatments for oversized parts. In addition, it provides logistics and information system development services. The company serves industrial machine tools, automobile parts, and construction machinery sectors. The company was formerly known as Oya Netsushori Co., Ltd. and changed its name to ONEX Corporation in July 1991. ONEX Corporation was incorporated in 1951 and is headquartered in Atsugi, Japan.