When sourcing from the China market, the first step is to verify the supplier's Business License and Export Qualifications. You should prioritize suppliers on Made-in-China.com that have the 'Audited Supplier' badge, as this indicates their premises and capabilities have been verified by third-party institutions like SGS, Bureau Veritas, or TÜV Rheinland. Always check their Registered Capital, Year of Establishment, and Main Product Category to ensure they are a specialized manufacturer rather than a general trading company.