How to Audit a Packaging Factory in China: Checklist and Red Flags

An on-site factory audit is the most reliable way to verify that a packaging supplier can consistently meet your quality, compliance and capacity requirements. A well-structured audit takes 4–6 hours and covers production capability, quality management, compliance documentation and social responsibility. This guide gives you the structure to conduct or commission a meaningful audit.

Pre-Audit Document Request

Before visiting, request these documents to review in advance:

• Business licence (营业执照) — confirms legal registration and business scope
• ISO 9001 certificate (if claimed) — check validity date and scope
• FSC Chain of Custody certificate — check certificate number against FSC database
• Recent customer quality audit reports (SMETA, BSCI, or equivalent)
• Organisational chart and list of equipment
• Sample compliance letters (food contact, FSC, REACH) for recent orders

Production Facility Assessment

On-site, evaluate:

• Equipment age and maintenance: Modern, well-maintained equipment indicates investment in quality; visibly aging equipment with improvised repairs is a risk signal
• Cleanliness and organisation: A 5S-organised facility (Sort, Set, Shine, Standardize, Sustain) indicates systematic quality management; a chaotic floor indicates process weakness
• Ink and solvent storage: Proper labelling, segregation, and spill containment — critical for safety and for food-contact compliance
• Colour management tools: Spectrophotometer present and in use; press operators checking colour to specification, not by eye
• Incoming material inspection: Board, film and ink received and inspected before use; records maintained

Quality Management Evaluation

Red Flags

• Factory refuses to allow photos or video — legitimate factories welcome documentation
• Documents shown cannot be verified (FSC certificate number not found in FSC database)
• Production is entirely subcontracted — they take orders and outsource everything; no control over quality
• No English-speaking technical contact — communication breakdowns cause quality errors
• Significant discrepancy between quoted price and market rate — unusually low prices indicate material substitution risk
• Invoices and packaging from different brands visible — the factory serves many categories but masters none

After the Audit

Score each audit area 1–5 and calculate a weighted total. Share the audit report with the factory and use it as the basis for a supplier improvement agreement if you decide to proceed despite identified gaps. Commit to a follow-up audit within 12 months. An audit is a point-in-time snapshot — ongoing monitoring through test orders and documentation requests provides the continuous assurance that a single audit cannot.