PS Construction Co., Ltd. engages in the civil engineering and architecture businesses in Japan. It undertakes works of precast segment, composite, corrugated steel web, composite truss, and long span arch bridges, as well as marine structures, as well as PC confined pier, and H-shaped PC pile works; and architectural section provides prestressed, precast, and precast prestressed concrete. It also offers JIS girders and PC deck slab; and architectural members, such as beams, columns, and floors. In addition, it engages in the design, manufacture, sales, and leasing of machines, equipment, and apparatuses for prestressed concrete construction and other construction works; mineral mining and contracts; purchase, sales, leasing, brokerage, ownership, and management of real estate; freight and storage business; and agency of liability insurance, life insurance, and auto insurance. The company was formerly known as P.S. Mitsubishi Construction Co., Ltd. and changed its name to PS Construction Co., Ltd. in June 2024. P.S. Mitsubishi Construction Co., Ltd. was incorporated in 1952 and is headquartered in Minato, Japan. P.S. Mitsubishi Construction Co., Ltd. is a subsidiary of Taisei Corporation.