General items: Technical services, technological development, technical consultation, technical exchanges, technology transfer, technology promotion; Manufacturing of arts and crafts and ceremonial items (excluding ivory and its products); Sales of arts and crafts and ceremonial items (excluding ivory and its products); Manufacturing of household products; Sales of household products; Import and export of goods; Import and export of technology. (Except for items that require approval according to law, business activities shall be carried out independently in accordance with the business license. )