Import and export of goods and technology; Enterprise management consulting (excluding financial businesses); Enterprise marketing planning; Organization of cultural and artistic exchange activities and planning (excluding literary and artistic performances); Conference services, exhibition display services; Technical development and services in the electronics field; Computer software and hardware development, sales, and maintenance; Sales of eyeglasses, clothing, shoes, hats, clothing and clothing accessories, leather products, daily necessities, educational supplies, handicrafts (excluding cultural relics), rubber and plastic products, metal products, furniture, sports goods, ceramic products, leather products, needle textiles, bedding, furniture, sanitary ware, bags, toys, environmental protection products, communication equipment, electromechanical equipment, pipeline equipment, refrigeration equipment, electronic products, chemical products, and raw materials (excluding hazardous chemicals). (Business activities may be conducted only after approval by relevant authorities for projects that require approval by law. )