Supplier Due Diligence
How to Verify a Chinese Supplier Before Importing (2026 Guide)
Before wiring money to a Chinese supplier, you need to confirm they are who they say they are. This guide walks through every essential verification step — from the business license to litigation checks — with a free verification tool you can use right now.
Published February 24, 2026 · 8 min read
Why supplier verification matters more than ever in 2026
Import fraud from China is not a rare edge case. Industry estimates put annual losses from supplier misrepresentation, advance fee fraud, and quality bait-and-switch schemes in the billions of dollars. Foreign buyers — especially small and medium-sized businesses — are the most common victims, because they lack the local networks and language skills to perform basic checks before wiring payment.
The good news: most fraud is preventable. A real Chinese company leaves a verifiable trail in government registries — SAMR, GSXT, and the courts. The key is knowing where to look and what to look for.
This guide covers the eight most important verification steps. You can complete most of them in under 10 minutes using QinCheck's free company check tool.
8-step supplier verification process
Get the supplier's USCC (Unified Social Credit Code)
Every legitimate Chinese company has an 18-character Unified Social Credit Code (统一社会信用代码) on their business license. Ask your supplier for it before anything else. If they refuse or cannot provide it, walk away. The USCC is the foundation of all verification — without it, you cannot confirm the company is real.
Validate the USCC structure and check SAMR records
The USCC has a specific alphanumeric structure with a checksum digit. Validate that the code is structurally correct, then look it up in the State Administration for Market Regulation (SAMR) database. This confirms the company exists, is legally registered, and the details match what the supplier told you. A mismatch between the USCC and the company name is a critical red flag.
Verify the business license is current and valid
Chinese business licenses (营业执照) have an issue date and, for some entity types, an expiry date. Confirm that the license is current, that the company name, address, and USCC match the SAMR records exactly, and that the post-2015 format with the 18-digit USCC is in use. A blurry, outdated, or altered license is a forgery risk.
Check that the business scope covers what they claim
The business scope (经营范围) defines what the company is legally allowed to do. A supplier claiming to manufacture automotive parts must have manufacturing in their business scope. If the scope only lists trading or import/export — they are not a factory, regardless of what the sales team says. This distinction matters for product liability, quality control, and customs documentation.
Verify the legal representative and ownership structure
The legal representative (法定代表人) is the person authorized to sign contracts and legally bind the company. Check that your contact has the authority to act on the company's behalf, or that they are signing with proper power of attorney. Also review the shareholder structure — knowing whether a company is state-owned, privately held, or has foreign investors affects how contracts are enforced.
Check for litigation and enforcement records
Search Chinese court records for lawsuits involving the company. Multiple breach-of-contract cases, unpaid judgments, or enforcement proceedings are serious warning signs. A company on the "Dishonest Persons" (失信被执行人) list — commonly called laolai — has failed to comply with court orders and should not receive large upfront payments.
Screen for sanctions and trade restrictions
Verify that the company and its key personnel do not appear on OFAC sanctions lists, the Entity List (BIS), or other trade restriction registries. Doing business with sanctioned entities can expose your organization to severe legal penalties — regardless of where you are located.
Review annual report filings and operational consistency
Chinese companies must file annual reports with SAMR. Missing reports may mean the company is on the abnormal operations list. Check whether the reported revenue, employee count, and asset figures are consistent with the supplier's claims about capacity and output. A factory claiming RMB 50M in annual revenue that reports 3 employees in its annual filing is misrepresenting itself.
10 red flags that should stop the deal
Not every issue is a dealbreaker on its own, but the following signals warrant serious caution. Multiple red flags together should be treated as disqualifying.
| Red Flag | Risk Level |
|---|---|
| No USCC or refuses to share business license | Critical |
| Company registered in the last 3 months | High |
| Business scope does not match claimed capabilities | High |
| Legal representative on dishonest persons list | Critical |
| Multiple active court proceedings | High |
| Registered address is residential or virtual office | Medium |
| Annual reports missing for 2+ years | High |
| Registered capital unusually low for claimed revenue | Medium |
| Company name on SAMR does not match documentation | Critical |
| Requests 100% upfront payment before verification | High |
What a QinCheck report covers
A QinCheck company verification report consolidates all eight steps above into a single, English-language report generated from live Chinese government data:
- USCC validation — structural check + SAMR lookup
- Business license details — company name, registered address, establishment date, operating status
- Business scope — translated into English, with capability assessment
- Legal representative and shareholders — names, roles, ownership percentages
- Litigation records — active and closed court cases
- Dishonest persons and enforcement lists — laolai check for company and key personnel
- Annual report status — filed, missing, or abnormal operations flag
- Risk signals — QinCheck proprietary scoring based on registration patterns and enforcement history
The basic check is free. No account required. Enter a company name or USCC and get results in seconds.
Frequently asked questions
How do I find a Chinese supplier's USCC?
Ask the supplier directly — any legitimate company will provide it without hesitation. It appears on their business license (营业执照) as the 18-digit code at the top. You can also find it by searching the company name on SAMR's National Enterprise Credit Information Publicity System (NECIPS).
Can I trust a business license image the supplier sends me?
Not on its own. Business license images can be forged or belong to a different company. Always cross-reference the USCC and company name in official government databases. QinCheck does this automatically against live SAMR data.
How long does Chinese company verification take?
With QinCheck, the basic verification takes under 30 seconds. A full report with litigation checks, ownership mapping, and risk scoring takes 2-5 minutes depending on data availability.
Is it safe to pay a deposit before completing verification?
No. Complete all verification steps before sending any payment, including deposits. Fraud schemes often involve collecting a small deposit from many buyers simultaneously, then disappearing. Verification takes minutes; recovering lost payments can take years.
What is the difference between a trading company and a manufacturer in China?
A manufacturer produces goods directly. A trading company buys from manufacturers and resells. The distinction matters for quality control, pricing, lead times, and minimum order quantities. Check the business scope to determine which type you are dealing with. For a detailed breakdown, see our guide on trading companies vs factories in China.