Iron & Steel Division-I

Product Lines

  • Plates, bars, shapes, rails, pipe, piles, other structural steel, slabs, billets, blooms, other semi-finished products, and clad steel

A Strategic Partner for Leading Global Manufacturers in Shipbuilding, Heavy Electric Equipment, Construction Machinery and the Construction Industry

Iron & Steel Division-I handles steel products widely used as key structural materials in shipbuilding, plants, construction and industrial machinery, infrastructure facilities and other fields, doing business with numerous and varied industries both in Japan and overseas. The division works through MISI processing and sales facilities, with key trading company functions such as steel plate cutting and molding, inventory management, domestic and overseas transport and others to meet the increasingly diversified needs of our customers.

Providing the Steel to Build the World's Infrastructure

In recent years, we have focused on supplying steel materials for infrastructure projects such as railway tracks and bridges, construction machinery and offshore structures to help develop resources, and wind power to generate clean energy. We also export high-quality rail with especially high wear resistance for use in overseas mine railways.

Focusing on Initiatives that Supply Steel for Clean Energy Development

With the demand for clean energy continuing to increase, wind power generation is a field attracting keen global attention. A case in point is floating offshore wind farms—for which verification testing has commenced in Japan—which are inspiring high expectations for meaningful contributions to the nation’s domestic energy supply. MISI supplies steel products for these verification tests that are used in floating bodies engineered to support wind turbines offshore, making a key contribution to creating viable future models and accumulating vital know-how. We will continue to play a key role in pioneering core initiatives in Japan’s energy sector.


Marubeni-Itochu Sumisho Techno Steel Inc.

As a leading trading company that specializes in steel construction materials, Marubeni-Itochu Sumisho Techno Steel takes maximum advantage of the group networks of three general trading companies—ITOCHU Corporation, Marubeni Corporation, and Sumitomo Corporation—to independently provide steel for the vital projects that form the foundations of nation-states. The company has fifteen sales offices across Japan, and provides construction materials, base materials and other materials to general contractors, processors, steel dealerships and construction products manufacturers.