Shuji Muramatsu

Part of Mitsui & Co., Ltd., Mitsui & Co. Steel Ltd. is a Japanese company that manufactures iron and steel products. The company is based in Tokyo, Japan.

Part of Chubu Steel Plate Co., Ltd., CK-Logistics Co., Ltd. is a Japanese company that specializes in the storage of dangerous goods and constant temperature warehouses. The company is based in Nagoya, Japan. The company has a strong storage of dangerous goods warehouses and are headquartered in Aichi prefecture.

Okaya (USA), Inc. is based in Arlington Heights, IL. Part of Okaya & Co., Ltd., Okaya (USA), Inc. is a company that strives to serve as a best sourcing partner that contributes to manufacturing and maintains a high level of awareness of customer's demands.

Part of TYK Corp., TYK America, Inc. is a company based in Clairton, PA.

Part of TYK Corp., TYK Europe GmbH is a German company that specializes in producing fire-resistant ceramics and refractory products for the steel and non-ferrous industries. The company is based in Oberhausen, Germany, and the CEOs are Nobutaka Ushigome and Ciprian Patru. With over 70 years of experience, the company has become one of the most competent suppliers of fire-resistant products worldwide. TYK also develops new materials such as fine ceramics, components for wind and heating energy, and environmental products like exhaust filters. The company's strategy is to enlarge the circle of gratitude all over the world through business quality and environment. TYK's product fields include steel production, products for the blast furnace, converter, electric arc furnace, ladle, and continuous casting.

Part of TYK Corp., TYK Ltd. is a British company that manufactures firebricks. The company is based in Chilton, UK. TYK was founded in 1988.

Akechi Ceramics KK manufactures ceramic products based on oxide ceramics containing carbon. The company is headquartered in Ena, Japan.

Houei Kogyo KK provides general contracting services such as constructing heavy construction projects. The company is headquartered in Yanagawa, Japan.

Crefact Corp. is an automotive parts manufacturer that specializes in exhaust mufflers and fuel tanks. The company was founded in 1967 and is based in Soja, Japan. Crefact is involved in the entire process from design to delivery, and is highly regarded for its technical capabilities in development, quality, and production.