Wholesale and retail: Pre-packaged food, bulk food (operating with license), grain, vegetables, poultry and eggs, raw meat, fresh aquatic products, office supplies, daily necessities, washing supplies, electronic products; Import and export of goods and technologies (except for items prohibited by national laws and administrative regulations); Business services. In addition to administrative regulations that require permission to operate, laws, (projects that require approval according to law can only be carried out with the approval of relevant departments)