Fudo Tetra Corporation engages in the civil engineering, ground improvement, and blocks and environment businesses in Japan. The company undertakes land civil engineering works, including roads, railways, dams, rivers, water supply and sewage, and energy facilities; and marine civil engineering works, such as ports, airports, fishing ports, coastlines, and artificial islands, as well as offers environmental solutions. It also provides settlement reduction, stability increase, liquefaction mitigation, cut-off wall, building foundation, and other ground improvement technologies. In addition, the company offers 3D block, flat, staircase shaped, upright wave-dissipating, and permanent formwork blocks, as well as environmental landscaping products; sells aquatic environment and landscape products, such as filter units and reef mats; and provides technical and design services, including the creation of cross-sectional and layout drawings using CAD, and proposals for optimal structures based on experiments and numerical simulations. Fudo Tetra Corporation was incorporated in 1947 and is headquartered in Tokyo, Japan.