Shanghai Jiayan Supply Chain Management Co., Ltd. (hereinafter referred to as "Jiayan") was established in 2006. It is a technology-driven industrial Internet service platform that provides enterprises with customized services. The service content covers: building iMRO one-stop catalog procurement and SRM supplier relationship management coordination system, EAM equipment asset management and IOT equipment interconnection to realize smart operation and maintenance, Jiayan's unique on-site service, helping customers to digitalize collaborative management and operation and maintenance , Transparency, convenience and cost optimization.