Supplier due diligence services are here to protect your business against potential threats related to your suppliers, old and new. By implementing quick and competitive supplier checks, you can drastically reduce your exposure to financial loss, or consequences of a bad supplier choice.
Supplier assessment and certificate verification are some of the tools you can use before placing an order with a Chinese supplier, or paying for a mold fee for a low-cost product made in China.
A few days, a small fee, and you can make a safer decision about your supplier. At JS Sourcing we never take a supplier’s claim at face value. We always ask for evidence, and go get it ourselves if needed.
Supplier checks by supply chain professionals for professionals.
Get to the bottom of who your supplier is. Know what they can and can not achieve before you entrust them with your orders.
Empower your decisions with actionable information from reputable authority sources such as national company registries and the factory floor.
Is the Chinese vendor legally registered? Is it on a blacklist? Does it own an export license?
Legal checks, in-depth supplier evaluations by our own auditors, factory tours and certificate checks.
A check does not end with a PDF. Because we also run sourcing, supplier management and quality control programs, our findings can turn into real action: better terms, tighter controls, or a better supplier.
Choose the level of evidence that matches what you already know, your buying stage and the value at risk. Each service can be booked independently.
Remote screening of the company behind the quotation using legal, ownership and commercial records.
An on-site review of the facility, visible manufacturing setup, organization and original documents, with photos and video.
A deeper on-site review of manufacturing capability, management practices, records and supplier risk.
Verification of certificate authenticity, validity, scope and relevance to the supplier or product.
Choose the breadth and depth of evidence you need on your Chinese vendors. The four services can be booked independently or combined into a wider supplier approval, sourcing or supplier-management assignment.
Beyond peace of mind, knowing the facts changes what you can negotiate, plan and prevent.
China has millions of trading companies, and a few of them cheat. A basic supplier check helps identify warning signs before your money leaves your account.
If the “factory” is really a trader, or does not hold its own export license, it is far better to know before you sign than after.
When you understand how your supplier works and what problems they face, you negotiate from facts instead of guesses and can spot opportunities to improve costs.
Suppliers change. Periodic checks help show what changed while everything still looks fine, so you can adjust controls before defects reach your customers.
The aim is not to remove every risk. It is to identify the issues that can change your decision, contract, controls or supplier choice before they become expensive.
Tell us the supplier, product and buying stage. We will recommend only the check you need.
Speak With a Supplier Due Diligence Specialist
After the First Order
Checking a supplier is not a one-time task. It keeps working for you as long as the relationship lasts: you always know who makes your goods, whether they can keep up, and whether their paperwork is still in order.
Really knowing a supplier means knowing their limits, which products they do best, who makes the decisions, whether they invest in their factory — and how they would react if your orders doubled.
Confirm the company is real before you spend serious time or money.
Supplier CheckSee which claims hold up on the ground.
Factory Visit · Certificate CheckA full evaluation before molds or large repeat orders.
Supplier AuditDemand corrections, adjust controls, or line up a backup.
Supplier ManagementRegular reviews catch changes in people, machines and paperwork.
Visits & AuditsYou don’t need all five steps for every supplier. Most clients start with a simple check, then go deeper only where the money justifies it.
More than a decade of sourcing work helps us spot gaps a stand-alone database check can miss.
Purchasers, auditors, quality engineers and sourcing specialists review the evidence together.
Findings are interpreted against your product, order value, quality needs and supplier stage.
Results can lead to corrective action, tighter controls or an alternative supplier.
Our Shanghai team arranges access and discusses findings directly with suppliers in Chinese.
Our office is in Shanghai, next door to the Yangtze River Delta factory belt. Together, the regions below cover most of China’s export manufacturing.
Shanghai is our base. The regions below are the recurring manufacturing and sourcing areas confirmed in current JS Sourcing materials.
Visits outside these provinces may still be possible depending on scope, timing and travel requirements.
Share the supplier name, location, product and buying stage for a remote or on-site recommendation.
Book a Supplier Due Diligence SolutionWe never rely on one source — and never on what the supplier says about itself. Every conclusion comes from several kinds of evidence, reviewed by a real person.
Registration, owners, operating status, sanctions and export history from official sources.
Supplier Check methodology →What our auditor sees, photographs and films on site — compared with what the supplier claimed.
Factory Visit methodology →Holder, validity, scope and issuing body — confirmed with the organizations behind the documents.
Certificate Check methodology →A purchaser or auditor separates facts from claims and explains what it means for you.
Buyer-side review →Case Study #1
A U.S. construction company was preparing its first AAC block order from a Chinese supplier. A remote Supplier Check compared the company’s presentation with available registration, ownership, operating and commercial records. The review found company-profile discrepancies that changed the onboarding decision. JS Sourcing then helped assess alternative factories and identify a better-suited AAC block manufacturer. The buyer avoided the original supplier and reduced purchasing costs by around 15%.
Case Study #2
A French importer of garden structures had used the same Chinese supplier over several production cycles. An annual Factory Visit reviewed the current manufacturing setup, production organization and visible changes at the site. The findings gave the buyer a clearer view of the supplier’s position and helped prepare the next commercial discussion. The importer used that information to negotiate more favorable payment terms while maintaining better visibility over the supplier relationship.
Send us the supplier name, product, factory location and what worries you. We will suggest the right check and reply within one working day.
Request a Supplier Due Diligence Review
