Wholesale and retail; Pre-packaged food and bulk food; Carry out import and export of various commodities and technologies to neighboring countries through small-scale border trade, Except for goods and technologies that are restricted for export by the country。 Allowing the operation of scrap steel under border trade、 scrap copper、 scrap aluminum、 waste paper、 Import business of five types of waste materials such as waste plastics operated by state-approved companies; Import and export of goods and technology; Sale: oil residue、 lint、 cottonseed, fertilizer, agricultural mulch film, livestock products, textile, Hardware and Electrical, Electronics, Daily necessities, Building Materials, ceramic products, office supplies, Packaging materials, fabric, Metal materials, glass products; House rental, Venue rental, Purchase of agricultural products 。( Projects that require approval according to law, Business activities can only be carried out after approval from relevant departments)