Manufacturing of lightweight building materials; Manufacturing of new building materials (excluding hazardous chemicals); Sales of lightweight building materials; Manufacturing of asbestos-cement products; Sales of asbestos-cement products; Manufacturing of lime and plaster; Sales of lime and plaster; Manufacturing of technical glass products; Sales of technical glass products; Manufacturing of cement products; Sales of cement products; Manufacturing of insulation and soundproofing materials; Sales of insulation and soundproofing materials; Manufacturing of bricks and tiles; Sales of bricks and tiles; Sales of new organic active materials; Sales of decorative building materials; Sales of building materials; Sales of new ceramic materials; Sales of thermal insulation materials; Sales of metals; Sales of building waterproofing membrane products; Sales of chemical products (excluding licensed chemical products); Research and development of new material technology; Installation and repair services for furniture; Import and export of goods; Import and export of technology.