Japan

Asahi-Seiki Manufacturing Co., Ltd., established in 1953, specializes in the manufacturing and sales of precision metal components, small arms ammunition, press machines, spring forming machines, automatic assembly machines, and specialized machinery. The company operates through two main divisions: the Precision Engineering Division, focusing on high-quality mass production of precision metal components and ammunition, and the...

Sumikin & Nippon Steel Stainless Steel Pipe Co., Ltd. was established in 2009 through the integration of the arc-welded stainless steel pipe and tube businesses of Sumitomo Metal Industries and Nippon Steel Corporation. The company specializes in the manufacture and sale of stainless steel pipes and tubes, serving various industries including automotive, construction, and civil...

BENKAN Co., Ltd. is a Japanese manufacturer specializing in the development and production of mechanical joints and stainless steel piping systems for residential and commercial applications. Their product range includes press fittings, tubes, flanges, and press tools, catering to industries such as construction, oil and gas, water supply, and infrastructure development.

Maruichi Stainless Tube Co., Ltd. specializes in the manufacture and sale of seamless stainless steel tubes and pipes, catering to industries such as nuclear power, aerospace, and semiconductors. The company is known for its high-quality products and advanced manufacturing technologies.

Stainless Pipe Kogyo Co., Ltd. is a Japanese manufacturer specializing in the production and sale of stainless steel pipes for various applications, including water pipes, gas pipes, petrochemical, and chemical fiber equipment pipes. The company also produces welded pipes made from materials such as nickel alloys, pure nickel, and titanium.

JFE Holdings, Inc. is a leading Japanese corporation primarily engaged in steel production, engineering, and trading services. Formed in 2002 through the merger of NKK Corporation and Kawasaki Steel, JFE operates globally, providing high-value-added steel products and engineering solutions across various industries, including automotive, construction, shipbuilding, and energy.

Osaka Steel Co., Ltd. is a leading electric arc furnace (EAF) steelmaker within the Nippon Steel Group, specializing in the production and sale of various steel products for construction, civil engineering, shipbuilding, steel towers, and industrial machinery manufacturing applications. The company is committed to contributing to a recycling-oriented society through steel recycling and environmental conservation...

Sumitomo Corporation is a leading Japanese sōgō shōsha (general trading company) engaged in a wide range of businesses, including metal products, transportation and construction systems, infrastructure, chemicals, energy, mineral resources, food, and consumer goods. Incorporated in 1919, it is a member of the Sumitomo Group and operates globally.

The Japan Steel Works, Ltd. (JSW) is a Japanese company specializing in the manufacture of industrial machinery and steel products. Founded in 1907, JSW operates through two main segments: the Industrial Machinery Products Business, which includes plastic production and processing machinery, molding machines, and other specialized equipment; and the Material and Engineering Business, offering steel...

Nippon Steel Corporation is Japan’s largest steelmaker and one of the top five producers globally. The company engages in steelmaking and steel fabrication, engineering and construction, chemicals and materials, and system solutions businesses. It offers a wide range of steel products, including plates, sheets, bars, rods, structural steel, pipes, tubes, titanium, and stainless products, serving...

MIE Techno Co., Ltd. is a Japanese manufacturer specializing in the production of metal products, including stainless steel pipe fittings, flanges, and prefabricated pipes. Established in 1907, the company serves various industries such as petrochemicals, semiconductors, shipbuilding, and construction.

Umezawa Seisakusho Co., Ltd. specializes in manufacturing piping joints and related components, serving various industrial applications.

Osaka Tokushu Kokan Mfg. Co., Ltd. is a Japanese manufacturer specializing in the production of high-quality steel pipes and tubes. Their products are utilized in various industries, including construction, industrial machinery, power plants, and the oil and natural gas sectors. Notably, their steel pipes have been used in prominent structures such as the Tokyo Sky...

Established in 1933, NAS Stainless Steel Strip MFG. Co., Ltd. is Japan’s first specialized manufacturer of cold-rolled stainless steel strips. The company produces high-precision, high-quality cold-rolled stainless steel products used across various advanced industrial fields, including automotive, IT, electronics, apparel, and medical industries.