Fudo Tetra Corp is engaged in the business of construction work. It operates through three businesses. Its Civil Engineering business is involved in the construction of civil engineering sectors such as roads, railways, dams and rivers, water and sewage, and energy facilities, as well as ports and airports, fishing harbors, coasts, and artificial islands. The Ground Improvement business specializes in ground development work. Its Block and Environment business consist of leasing products for wave-dissipating block and foot protection use.