1. Investigate and investigate new franchised suppliers. The new franchised suppliers provide business qualifications, download from the website and fill in the supplier questionnaire. After collecting all relevant data, the Procurement Department conducts investigation and investigation through field visits or professional websites, and sends the investigation contents and results to the group companies to determine whether they are qualified suppliers.

2. Issuing bidding documents: according to the demand plan of each group company, the procurement department will publish the bidding procurement announcement on the group website.

3. Tender recall and bid determination: Suppliers shall bid within the time required by the bidding and procurement announcement, and the procurement department shall summarize and compare the recovered tenders, and then determine the quality of each supplier's production and supply guarantee ability based on relevant companies and departments.