1. Relevant certificates: To become a supplier in Sam, you need to have valid business license, account opening permit, taxpayer qualification, articles of association and other qualification certificates. At the same time, you also need to provide product-related documents and relevant evidence of cooperation with internationally renowned brands. These materials need to be stamped with the official seal of the company and ensure their authenticity and integrity.

2. Business norms: After becoming a supplier in Sam, you need to strictly abide by the business norms of Sam member stores, including quality standards and service standards, and at the same time, you need to undertake corresponding responsibilities and obligations, such as providing quality products and services and maintaining the image and reputation of Sam member stores.