Nitchitsu. 

Founded in 1950 and based in Tokyo, Japan, Nitchitsu Co., Ltd. operates a multifaceted business spanning several industrial sectors. The company is a key player in the Japanese industrial machinery market, specializing in the design, manufacture, installation, and supervision of a wide range of equipment, including marine apparatus, air preheating units, and general industrial and plant-related machinery. Beyond its engineering work, Nitchitsu is also involved in the procurement and distribution of construction materials such as silica sand, gravel, sand, and crushed stone, as well as the production and sale of refined silica powder. Furthermore, its operations extend to property management through office building leasing, the manufacturing and marketing of heat-resistant paints, and the processing and commercialization of natural rubber products.