This is how $200 saves you $200,000 (Pre-shipment inspections)

Your supplier just sent you photos of the finished goods looking perfect.

Those photos are marketing, not evidence. If you are shipping products without a third-party pre-shipment inspection, you are betting your margin on someone else's word.

Here is what I have learned about PSI after years of building hardware in Asia.

1. If you have any doubt about your supplier's QC or honesty, inspect
   New supplier? Inspect the first 3-5 production lots without exception. This applies to component batches too (at the components supplier), not just finished products.
2. Do not fly out to inspect it yourself
   A trained local inspector who does this daily costs around $200 and knows exactly what defects to look for. Your time is not well spent squinting at solder joints in Dongguan.
3. Read the raw data, not just the summary
   Inspectors are competent, but they do not know your product like you do. The report might say "PASSED" while the photos show something you would never approve of. Always review the full report and every image yourself.
4. Detailed instructions produce better results
   Be very specific. If your product requires fixtures or specialized test software, ship them to the inspector or provide explicit protocols.
5. Build a standard inspection packet template
   Create a reusable checklist that you update for every batch. One template per product, updated before every inspection. Include:
   • Product identifiers: brand, model, description, quantity, SKU variations.
   • Priority defects: issues fixed in previous batches that must be re-verified.
   • Golden sample: physical reference unit if available.
   • Current artworks: packaging, labels, inserts, user manuals (version-controlled).
   • IDs to verify: serial number ranges, UPC/EAN barcodes per SKU, regulatory tags.
   • Cosmetic references: color, finish, texture, look and feel standards.
   • BOM: exact list of what ships with the product.
   • Dimensional specs: critical dimensions with tolerances.
   • Functional tests: step-by-step procedures and pass/fail criteria.
   • Safety and compliance markings: required certifications and label placements.
   • Defect classification: what counts as critical, major, or minor.
   • AQL sampling plan: inspection level and acceptance limits.
   • Known defect photos: examples from past lots to watch for.
6. Never release final payment before the inspection clears
   This is your leverage. Structure your payment terms so the final payment is held until you are fully satisfied with the inspection results.
7. Treat every report as potentially falsified
   Inspection companies have strict no-bribery policies. Policies do not stop every bad actor. It is rare, but I have seen suppliers bribe inspectors to clean up results. Look for red flags: photos that do not match stated sample sizes, suspiciously perfect measurements, timestamps that seem inconsistent, backgrounds that do not match the factory floor you visited.

Pre-shipment inspection is not bureaucracy. It is $200 insurance against a $200,000 disaster.