Third-Party Inspection
A quality check carried out by an independent inspection company hired by the buyer, rather than by the factory or the buyer's own staff.
TL;DR: Third-party inspection means an independent company checks the goods on the buyer’s behalf. It gives overseas buyers an objective view of quality without traveling to the factory.
Well-known inspection companies include SGS, Bureau Veritas, Intertek, and QIMA, along with many regional firms. They offer several services. Common ones are factory audits, during-production inspection, PSI (Pre-Shipment Inspection), and container loading checks, where the inspector watches the goods being loaded and confirms counts and packing.
The inspector follows the buyer’s checklist and an agreed sampling plan, usually based on AQL (Acceptable Quality Limit). The report typically includes photos, measurements, defects found, and an overall result. The inspection company does not decide whether you accept the goods. It gives you the facts, and you decide with the supplier what happens next.
The buyer normally books and pays for the inspection. Share the purchase order, specifications, approved PPS (Pre-Production Sample) photos, and your defect definitions in advance. A vague brief produces a vague report.
When importing custom products from China, coordinate the inspection date with the supplier early, because inspectors need the goods to be finished and mostly packed. For custom mosaic murals, ask the inspector to open a sample of cartons, lay out a few sheets against the layout drawing, and check color, numbering, and damage. If the order uses an L/C, an inspection certificate can also be listed as a required document.