Nihon Kogyo Co., Ltd. engages in the manufacture and sale of concrete products. It operates through the following segments: Civil Engineering Materials, Landscape Materials, and Exterior. The Civil Engineering Materials segment manufactures and sells underdrain products such as box culverts and heavy pressure pipes, retaining walls, gutters, and river revetments which are used for social infrastructure development. The Landscape Materials segment produces pavement materials, curbs and stair blocks, artificial wood, and artificial stone products used for public facilities such as sidewalks and parks. The Exterior segment deals with the manufacture and sale of garden-related products centered on standing faucets for individual homes and home exterior products such as decorative blocks and gateposts. The company was founded on August 10, 1956 and is headquartered in Sanuki, Japan.