General items: Manufacturing of synthetic materials (excluding hazardous chemicals); Sales of synthetic materials; Seal manufacturing; Seal sales; Manufacturing of rubber products; Sales of rubber products; Sales of high-performance sealing materials; Paper manufacturing; Paper product manufacturing; Sales of paper products; Manufacturing of plastic products; Sales of plastic products; Sales of plastic packaging containers, tools and products for food; Sales of packaging materials and products; Sales of special packaging equipment; Research and development of new material technology. (Except for projects that require approval according to law, independent business activities shall be carried out according to law with the business license)