Mori-Gumi Co Ltd operates in four divisions - Civil engineering, is engaged in the construction of bridges, roads, and other civil structures; Crushed stone division, involves trading crushed stones, granulated crushed stone, chestnut stone, crushed sand, single grain crushed stone, regenerated crushed stone, and bunker sand; Pollution prevention business, engaged in the manufacture and sale of pollution prevention facilities and equipment; and Real estate division which involves trading and leasing of real estate.