The riskiest moment in sourcing from China is the one right before you send the first payment. The supplier has a slick Alibaba storefront, a bilingual sales rep on WeChat, maybe even a trade-show booth photo on their website. None of that proves the company legally exists. The only thing that proves it is a single line on a government registry: the USCC.
USCC stands for Unified Social Credit Code (统一社会信用代码 — tǒngyī shèhuì xìnyòng dàimǎ). It is the unique 18-character identity number assigned to every legal entity in mainland China — a company's registration number, tax ID, and organization code fused into one. In China this code is the single official key under which a company's existence and legal status can be looked up. If you want to screen out bad suppliers rather than just find good ones, the job starts with finding and verifying these 18 characters.
That is exactly what this guide covers: what the USCC is, why it has exactly 18 digits, where to find it on an Alibaba listing (including a spot most buyers scroll past), and how to verify it once you have it.
Before 2015, a Chinese company carried several different identity numbers at once: a business registration number from the industry-and-commerce bureau, an organization code from the quality supervision authority, and a separate tax registration number. The fragmentation made audits harder for the government and identity checks harder for everyone else.
On October 1, 2015, the "three certificates in one" reform (三证合一) merged those numbers into a single code — the USCC — whose structure is defined by the national standard GB 32100-2015. Since then, every company, factory, cooperative, association, and even government body in mainland China carries one 18-character code in the same format.
Here is why this matters at your desk. The 18-character code printed on a company's business license (营业执照 — yíngyè zhízhào) is that company's one permanent identity in the eyes of the state. The company can change its name, move its registered address, even change owners — the USCC stays the same. That is why you verify the code and not the name: China has thousands of companies with identical or near-identical names, but each USCC belongs to exactly one legal entity.
The USCC is not a random serial number. Each position carries specific information, and under GB 32100-2015 the code breaks into five parts. The first character identifies the type of registration authority that registered the entity — for commercial companies, it marks a registration originating from the market regulation system. The second character encodes the entity type: a company, an individually-owned business, a cooperative, and so on. Characters three through eight hold the administrative division code — the six-digit code of the province, city, and district where the entity is registered. A company registered in Guangzhou's Panyu district carries that district's code here. Characters nine through seventeen form the main identity code, a nine-character section inherited from the old organization code system. The eighteenth and final character is a check digit computed from the first seventeen with a defined algorithm, so a typo anywhere in the code can be detected mathematically.
That last part deserves a moment. Because position 18 is mathematically derived, a single mistyped character almost always produces an invalid code. When a supplier emails you their USCC and one digit looks smudged in the scan, you do not have to guess — retype the code carefully, and if the check digit no longer validates, you know the copy is wrong and can ask for a clean one before anything else happens.
The structure also gives you two field-level advantages. The division code tells you where the company is registered — if a supplier says "our factory is in Shenzhen" but their USCC points to a different province entirely, that is at minimum a question to ask (a sales office and a factory can be different entities, but the supplier should be able to explain it). And you can spot a non-USCC instantly: anything shorter or longer than 18 characters is not one. When a supplier sends you a blurry scan of a business license, count the characters first. If it is not 18, you are looking at either a pre-2015 registration number or a different document altogether.
Alibaba does display registration data, but it rarely labels anything "USCC." The code hides in a place most buyers scroll straight past.
Go to the product page and click the seller's name. Directly next to the company name there is a small downward-pointing arrow — an icon only, with no text, which is why almost nobody notices it. Click it and an information card expands. On that card, look for the row labelled "Registration No." — the 18-character code in that row is the USCC. On the English interface this card is the supplier evaluation summary; on mobile the same arrow exists (including on m.alibaba.com pages), though the card may appear without a heading, and for some sellers the arrow only shows on desktop. If you search the page for "USCC" you will find nothing — "Registration No" is the label to look for.
Two cautions apply here. Not every number on an Alibaba profile is a USCC: some profiles carry an older registration-number format or a number the company typed in itself. The rule of thumb stands — 18 characters, letters and digits mixed, and you are almost certainly looking at a USCC. And if the code is nowhere on the profile, ask the supplier for a copy of the business license. For a legitimate Chinese company this is routine; the license shows the characters 统一社会信用代码 right next to the 18-digit code. A counterparty who refuses, stalls for weeks, or sends bank account details instead of a license is a warning sign all by itself.
A scenario that plays out constantly: a buyer is talking to a "Foshan-based" furniture manufacturer. The profile's registration number is only 15 digits. When the license copy arrives, the USCC's region code points to a different city, and the registered company name does not quite match the storefront name. That is not necessarily fraud — the trading company and the factory are often separate legal entities — but it does mean you need to pin down exactly which legal entity you would be paying, before you pay it.
You have the 18 characters. Now confirm they belong to a real, currently active company. Three main channels exist, and they are not equally convenient.
The National Enterprise Credit Information Publicity System (gsxt.gov.cn) is China's official company registry. Enter the USCC in the search box and you get the company's legal name, registered capital, incorporation date, legal representative, and registration status. The site is in Chinese and throws a captcha at you; without Chinese, browser translation gets you through the key fields. The single most important field is the registration status: 存续 (cúnxù — active) is what you want to see. 注销 (zhùxiāo — deregistered) or 吊销 (diàoxiāo — license revoked) means the company in front of you can no longer legally trade.
Tianyancha (tianyancha.com) compiles the same official registry data and adds depth on top: litigation records, enforcement cases, shareholder structure, affiliated companies. The interface is again mostly Chinese.
Reporting services are the third option. If you would rather not navigate Chinese-language sources yourself, you can search by company name or USCC through a service such as China Trade Intel (ankadata.com.tr) and get a due-diligence report with a risk score, ownership structure, litigation and enforcement records, and contact verification in a single PDF.
Whichever channel you use, compare three things without fail: does the company name in the records match the name you were given, is the legal representative consistent with the structure your contact belongs to, and is the registration status active? For example, a supplier might give you an English trading name like "Shenzhen Bright Tech," while the registry entry under that USCC shows a completely different legal name with a legal representative you have never heard of — that mismatch is exactly what these three checks are designed to catch. They take minutes in total, and they eliminate the crudest fraud patterns outright: the nonexistent company, the dead company, the middleman selling under someone else's license.
No, and this point matters. The USCC tells you that a company exists and what its legal status is. It does not tell you whether it is a good business partner.
A company can show as active while carrying dozens of lawsuits, while its legal representative sits on the list of judgment defaulters (失信被执行人 — the "dishonest persons" blacklist), or while it has quietly stopped producing anything at all. Some records also update with a delay, so "nothing in the records" does not always mean "nothing happened" — it means confirmation is needed.
Treat USCC verification as the first rung of the ladder, then build on it: the company's litigation and enforcement history, its ownership structure (who really owns it), its registered capital, and its incorporation date. If a company incorporated two years ago with modest capital tells you it is a "20-year-old factory," the registry data is the only way you catch that contradiction. For large orders, sample inspection and — where feasible — an on-site audit belong on the table as well.
Eighteen characters open the door. Do not decide anything until you have looked through it.
The USCC is not confidential information; in China the business license is effectively a public document, and companies print this code on their invoices. Be cautious with any counterparty unwilling to share it. If you know the company's full Chinese name, you can search by name on gsxt.gov.cn or Tianyancha and find the code yourself.
Since the 2015 reform, yes — because three certificates were merged into one, the USCC doubles as the company's tax registration identity. An official invoice issued by a Chinese company (发票 — fāpiào) carries the USCC of both buyer and seller. You may see separate tax numbers on older documents, but the current valid identity is the 18-character code.
No. The USCC applies only to legal entities in mainland China. Hong Kong runs a separate registry (the Companies Registry); if you are dealing with a Hong Kong company, you need to look up its company registration number (CR No) there instead.