Production of hazardous chemicals; operation of hazardous chemicals; power generation business, power transmission business, power supply (distribution) business; manufacturing of synthetic materials (excluding hazardous chemicals); sales of synthetic materials; manufacturing of synthetic fibers; sales of synthetic fibers; manufacturing of plastic products; sales of plastic products; manufacturing of special chemical products (excluding hazardous chemicals); sales of special chemical products (excluding hazardous chemicals); manufacturing of new building materials (excluding hazardous chemicals); sales of building materials; sewage treatment and recycling; sales of cement products; research and development of new material technology; manufacturing of basic chemical raw materials (excluding manufacturing of licensed chemicals such as hazardous chemicals)