How to Verify Suppliers for Regulated Products: Medical, Food, and Chemicals

Third-party inspection companies like SGS, Bureau Veritas, and Intertek operate extensively in China. An inspector visits the factory unannounced, inspects goods using your quality checklist, and provides a report within 24-48 hours. Cost ranges from $300-800 per inspection depending on location and scope. For most orders, this cost is justified by the risk reduction. I've personally caught critical defects during PPI that would have cost 10x more if missed.

Sample quality is not always indicative of production quality. Some factories produce 'golden samples' — handcrafted by senior technicians — while mass production runs on standard lines. To verify, ask for samples taken from regular production, not specially prepared ones. Better yet, visit during production and randomly select samples from the line. The gap between sample and bulk quality is one of the most common complaints in China sourcing.

A legitimate Chinese factory should be able to provide: business license, export license, third-party audit report, client testimonials with contact information, product certifications, and a physical factory address verifiable on Google Maps. If any of these is missing, ask why. A trading company can be a good partner but should be transparent about their role. Never work with a supplier who misrepresents their identity.