Ningbo Cold Chain Duoduo E-commerce Co., Ltd. (abbreviated as LLDD, Guolian Shares (stock code: 603613.SH) Duoduo is a member of the industrial Internet platform and the core operating enterprise of the group's agricultural and agricultural materials sector. The company's business entities include B2B e-commerce transaction services for resin categories, digital supply chain services, industrial digital services and industrial big data services, and is committed to promoting the deep integration of new technologies such as the Internet, Internet of Things, big data, intelligent manufacturing, and blockchain with traditional industries. By actively integrating the existing value system of the industrial chain, we will work with core enterprises in the resin industry chain, industry associations, industrial parks, government agencies and other resource parties to jointly promote the construction of digital transaction systems, sub-terminal service systems, digital cloud factories, digital parks, digital mines and other multi-dimensional cooperation models.

Currently, the main operating industrial chains include: poultry and egg industry chain, frozen product industry chain, fruit and vegetable industry chain, pork industry chain, fresh food industry chain, digital cattle industry chain and other products.

In the cold chain service system, B2B e-commerce transactions mainly include: independent e-commerce, matchmaking e-commerce, cross-border e-commerce and SaaS services. Among them, independent e-commerce mainly achieves rapid order return on the platform through collective procurement, group purchase, bidding auction, bulk product live broadcast, etc., compresses transaction links, improves procurement and sales efficiency, and helps upstream and downstream companies reduce costs and increase efficiency.Matching e-commerce is based on the platform opening plan, inviting advantageous enterprises from various industrial chains to settle in the platform, and helping merchants to build an online marketing system for bulk commodities through the construction of mature functions such as flagship stores, spot order systems, matching auctions, etc.; cross-border e-commerce is a comprehensive service platform based on the operation of its own platform and third-party platforms, which develops overseas users for cooperative enterprises and conducts overseas sourcing. It aims to promote the improvement of global industrial chain collaboration efficiency through the digitalization of cross-border transactions; SaaS services are mainly based on online ordering, electronic signature online payment, cloud ERP, video authentication, cloud conferencing and other modules and service integration systems based on e-commerce transactions, delivery and information interaction needs.