R&D of bio - based materials technology; Environmental emergency treatment services; Sales of bio - based materials; Sales of chemical products (excluding licensed chemical products); R&D of biochemical product technology; Information technology consulting services; Enterprise management consulting; Construction of landscaping projects; Sales of eco - environmental materials; Labor services (excluding labor dispatch); Loading and unloading; Sales of building materials; Retail of hardware products; Sales of daily ceramic products; Sales of household appliances; Sales of instruments and meters; Sales of electronic products; Sales of electrical equipment; Retail of clothing and apparel; Retail of shoes and hats; Sales of sanitary ware; Sales of daily necessities; Sales of office supplies; Sales of plastic products; Retail of computer software, hardware and auxiliary equipment; Sales of doors and windows; Software development; Import and export of goods, import and export of technology (except for projects that must be approved in accordance with the law, independently carry out business activities that are not prohibited or restricted by laws and regulations)