TOYO CONSTRUCTION CO., LTD. is a construction company. The Company operates in four business segments. The Domestic Civil Engineering segment is engaged in civil engineering in Japan. The Domestic Construction segment operates in construction business in Japan. The Overseas Construction segment is engaged in civil engineering and construction works overseas. The Real Estate segment operates in leasing and sale of real estate business. The others business is engaged in the non-life insurance business, the leasing and sale of general goods and ships, as well as the manufacture and sale of hygienic facilities and interior and exterior toilet facilities.