Importing products from China involves multiple moving parts, and quality control is one of the most critical. Many businesses place orders with overseas factories, wait weeks for production to complete, and receive shipments that do not match their original specifications.
Wrong colors, broken units, and incorrect labeling, these are problems that are difficult and expensive to fix once goods have already shipped.
A Pre-shipment Inspection is a practical solution that helps importers catch these issues before products leave the factory.
A pre-shipment (PSI) is a quality check done at the factory or warehouse before your products are loaded into a container and sent to port. It is also called a Final Random Inspection, or FRI, because it is typically the last check that happens before goods ship out.
The timing matters. PSI is carried out when at least 80% of your order is finished and packed. That way, inspectors are checking actual production units from your batch, not a handful of special samples the factory prepared for show.
Most professional inspection companies follow the ANSI/ASQC Z1.4 (ISO 2859-1) standard for sampling. This means a calculated number of random units are pulled from your order and tested against your exact specifications.
To put things in perspective, defective products and poor quality cost businesses billions every year in recalls, returns, and lost customers. A single inspection is a fraction of that cost.
Also Read This: Pre-Shipment Inspection – 7 Key Steps of the Procedure

A good Pre-shipment Inspection is not just someone walking through a warehouse and nodding. It is a structured, checklist-based process that includes:
At the end, you receive a comprehensive report with findings, defect classifications, and a recommendation on whether the shipment passes or requires corrective work before leaving the factory.
Not every order carries the same level of risk. But in certain situations, skipping a PSI is a decision you are likely to regret.
Book a Pre-shipment inspection when:
Studies show roughly 40% of product defects go undetected without a third-party quality check. That number alone makes a strong case for independent inspection.
Jonble is a product inspection and quality control company based in Hangzhou, Zhejiang, China. They have been working with foreign importers for over 20 years, helping businesses protect their orders before goods ever leave the factory.
Also, beyond Pre-shipment inspection, Jonble provides Initial Production Inspection, During Production Inspection, Full Inspection, Container Loading Inspection, Factory Audits, and Sample Picking. Whether you want a single one-time check or ongoing quality control across your supply chain, they take care of it all from one place.

1.What is the difference between a PSI and a during-production inspection?
A during-production inspection (DUPRO) kind of happens while manufacturing is still going on, so you can catch and fix issues way earlier than later. A Pre-Shipment inspection (PSI) happens close to the end, when most of the order is already packed up. Both are helpful, but PSI becomes your real last chance to approve or reject a shipment before it actually ships.
2.How many products get inspected during a PSI?
Not every single unit. Inspectors randomly pull a sample, using the AQL sampling method under ANSI/ASQC Z1.4. The exact number you end up checking depends on your total order quantity, plus the AQL level you choose.
3.Can a PSI be done for any kind of product?
Yes, Pre-Shipment Inspections are carried out across a pretty wide set of categories like garments, electronics, toys, furniture, housewares, jewelry, and more, so it is not only one specific item type. The inspection checklists are adjusted to match each product, instead of being the same everywhere.
4.How fast do I get the report?
The time for reports depends on the company, product type, and more. With Jonble, the detailed inspection report lands in your inbox within 24 hours of the inspection.
5.Is a pre-shipment inspection worth the cost?
For most importers, without question. The cost of one inspection is far less than handling a defective shipment, processing returns, dealing with customs issues, or managing complaints from customers. It protects your investment before the risk becomes a problem.
If you source products from China, a Pre-shipment Inspection is one of the most practical steps you can take to protect your order. It gives you real data, not assumptions, before you commit to releasing payment and accepting a shipment.
Jonble makes that process straightforward, with fast scheduling, experienced inspectors, detailed reports, and coverage across all of China.
Visit jonble.com to learn more or get a quote from their team.