Casting is widely used from daily necessities such as sukiyaki pots and gas appliances to public objects such as manholes and street lights, parts such as artificial satellites, ships, automobiles, construction machinery, and agricultural equipment.

Since its establishment as a sand mining industry for castings, Tsutsuyoshi Sangyo has contributed to the development of Japanese manufacturing together with foundry manufacturers as a sand specialist indispensable for casting production.

In addition, in order to keep up with casting manufacturers, the company develops and sells various heat-resistant and refractory materials for casting factories, proposes plant equipment, and installs. We are also committed to the environment-friendly recycling business.