Technical services, development, consultation, exchange, transfer, and promotion; Technical promotion services; Sales of bio based materials; Manufacturing of bio based materials; Sales of plastic packaging containers, tools and products for food; Engineering and technical research and experimental development; Research and development of new material technology; Sales of synthetic materials; Sales of plastic products; Sales of ecological and environmental materials; Special equipment manufacturing (excluding licensed professional equipment manufacturing); Manufacturing of specialized equipment for plastic processing; Mold manufacturing; Manufacturing of plastic products; Research and development of bio based material polymerization technology; Sales of daily necessities; Sales of paper products; Internet sales (excluding sales of goods that require licensing); Wholesale of kitchen utensils, sanitary ware, and daily necessities; Research and development of kitchenware, sanitary ware, and daily necessities; Retail of kitchen utensils, sanitary ware, and daily necessities; Sales of daily necessities.