Supplier management is our top priority throughout the supply chain.All products are sourced from franchisees or only authorized sources. We have a more complete supply chain system, we have our own supply chain system. For purchasing, we only cooperate with suppliers who have official quality certification or authorized by the original factory agent. During this time, it is necessary to verify through our supplier management procedures to review and evaluate the qualification of suppliers according to the latest quality management procedures. To ensure that all products are from proven, reputable, and track quality history, performance and service performance, 100% quality assurance and full traceability as well as inventory supply and demand and order history information. All of our supplier audits are controlled and evaluated by our supply chain and logistics organization experts. Through the supply chain experts layers of screening, professional logistics personnel test, and finally approved and reviewed, finally become our existing business partners. And all inspection and testing procedures are rigorous and certified by third party agencies to prevent counterfeit parts from entering your supply chain.