General project: Production of refractory materials; Sales of refractory materials; Sales of insulation materials; Sales of building materials; Sales of chemical products (excluding licensed chemical products); Sales of ovens, furnaces, and electric furnaces; Sales of new ceramic materials; Sales of asbestos products; Sales of insulation and sound insulation materials; Sales of new metal functional materials; Sales of metal products; Manufacturing of insulation and sound insulation materials; Manufacturing of asbestos products; Manufacturing of ovens, furnaces, and electric furnaces; Information consulting services (excluding licensed information consulting services); New material technology promotion services; Research and development of new material technology; Technical services, development, consultation, exchange, transfer, and promotion; Engineering and technical research and experimental development; Engineering management services; Industrial engineering design services (except for projects that require approval according to law, independently carry out business activities with a business license in accordance with the law)