How to Hire a Third-Party Inspector in China for Industrial Equipment

Published 9 November 2026

Buying equipment from China for an oil & gas, petrochemical or power project usually means someone has to attend the vendor’s works on your behalf. Here is how to set that up so the inspections are useful and on time.

1. Decide what you need

• Visit inspection at the hold and witness points of the ITP, for most orders.
• Resident inspection when the vendor has activities nearly every day, such as pipe mills or large packages.
• Expediting if delivery dates are the bigger risk.
• A vendor audit before you award an order to a new manufacturer.

2. Send the right documents

The purchase order without prices, the technical specification, approved drawings, the ITP and the vendor’s contact details. Without the ITP, the inspector can only check what the vendor shows them.

3. Check the inspector, not only the agency

Ask for the CV of the person who will attend. Look for experience with the same type of equipment and qualifications that match it: welding inspection for fabricated equipment, NDT qualifications for NDE review, API 510 or similar for pressure equipment. If your operator requires approved inspectors, ask for the approval number.

4. Agree the reporting

Agree the report template, language, photo requirements and turnaround. A same-day flash report with the result is worth more than a long report two days later.

5. Compare quotes on the same basis

Quotes in China are usually per inspector-day. Check what is included: travel within a radius, travel time, report writing, weekend and holiday work, and rework visits after a failed test.

6. Plan notification

Most problems with third-party inspection are timing problems. Require the vendor to notify the inspection agency and the buyer together, with the test procedure attached, three to five working days before each hold or witness point.