Mitani Sekisan Co., Ltd. produces and sells concrete products in Japan through three segments: Concrete Secondary Products-Related Business, Information-Related Business, and Others. Its offerings include pile products such as prestressed concrete, PRC, and SC piles, as well as construction management equipment and systems, triple plate joints, and coupling and F.T. pile construction products. The company also provides prestressed concrete poles and diameter poles, waterwork materials, gravel and stones for civil engineering, railway tracking and pavement roadbed materials, raw concrete, concrete secondary products, aggregate for asphalt composite material, construction materials, solar/pile systems, and environmental products including VS lateral grooves, L type retaining walls, block holding walls, box culverts, flumes, and H-form PC piles. Additionally, it operates hotels, rents office buildings, and engages in information-related solutions and environmental hygiene businesses. Incorporated in 1946, the company is headquartered in Fukui, Japan.