General business projects are: Internet system development and application (excluding the provision of Internet access services); Iot supply chain management; Blockchain system development; Operation of electronic commerce (involving the pre-emptive administrative license, the pre-emptive administrative license document must be obtained before the operation); Supply chain management purchasing sales and purchasing agricultural products; Primary agricultural products, daily necessities, clothing, shoes and hats, cosmetics, baby products, handicrafts, communication and electronic products, automobiles, office supplies, sporting goods, hardware products,