Fudo Tetra Corporation engages in the civil engineering, ground improvement, and block environment businesses in Japan. It operates through three segments: Civil engineering business, Ground improvement business, and Blocks & Environment business. The Civil engineering business segment undertakes works related to roads, railways, dams, rivers, water and sewage systems, and energy facilities; and offshore civil engineering works for harbors, airports, fishing ports, shorelines, and man-made islands. The Ground improvement business segment undertakes geotechnical engineering projects and installation works; and develops ground improvement technologies for settlement reduction, stability increase, liquefaction mitigation, water cutoff walls, building foundations, and other applications. The Block & Environment business segment offers 3D, flat, stepped, and vertical wave-dissipating blocks; environmental landscaping products; and develops and markets a range of technical and design services for waterfronts, as well as products to protect landscapes and ecosystems. Fudo Tetra Corporation was incorporated in 1947 and is headquartered in Tokyo, Japan.