Toru Shigematsu

Japan Pile Corp. engages in foundation construction related business and management of domestic subsidiaries in concrete pile manufacturing and construction business. The company was founded on March 2, 2015 and is headquartered in Tokyo, Japan.

JFE Shoji Corp. engages in the import, export, and domestic and foreign trade of steel products and steel raw materials. It provides iron ores, coals, ferrous alloys, steel scraps, steel plates, and steel pipes. It also deals with ship, food, and electronics businesses. The company was founded on January 5, 1954 and is headquartered in Tokyo, Japan.

The Japan Research Institute Ltd. is a 'knowledge engineering' company, a company that offers information services, through the coordinated application of its three functions, that is, information systems, consulting, and think-tank. As a systems integrator, the company offers services in information technology (IT) strategy planning, implementation and outsourcing for a broad range of industries and activities. The company is also active in research of both domestic and foreign economic issues and formation of policy recommendation, as well as consulting in fields, such as corporate strategies and public administrative reform. In addition, the firm provides analyses and surveys for incubation activities in the creation of new markets and industries. Through these operations The Japan Research Institute offers a vision to its customers towards changes in the economic and social environment as well as developments in the IT area.

Phan Vu Investment Corp. engages in the manufacture of concrete pipes. Its products include pre-stressed concrete sheet pile, pre-stressed concrete piles, pre-stressed spun nodular pile and eurowall panel. The company was founded in 1996 and is headquartered in Ho Chi Minh City, Vietnam.

Sumitomo Mitsui Card Co. Ltd., engages in credit card, loan, guarantee and gift card related business. The company was founded on December 26, 1967 and is headquartered in Tokyo, Japan.