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Unified Social Credit Code checker

Paste the 18-character code from a Chinese business licence. We check the checksum and decode what the code says about the registering authority, entity type and region.

Checks run in your browser as you type and nothing is stored. The code travels in the URL, so opening a shared link, reloading, or submitting without JavaScript sends it to our server once.

Valid format · checksum passes91330110MADDHBY01E
Registering authority9 — Market regulation (SAMR). Most companies register here.
Entity type1 — Enterprise (company). Not a sole trader, not a cooperative.
Region330110 — Hangzhou, Zhejiang
Organisation codeMADDHBY01 — internal check digit passes
Check characterE — matches
A valid format does not mean the company is registered. Verify the code on the official registry, or let us confirm the legal entity and check your documents against it.

Want the registration record behind a valid code? Look the company up in English: free to search, US$9 for the report.

Want the company behind this code confirmed?
Send us the licence and your paperwork. Written report in two business days, US$129.
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Questions

What is a Unified Social Credit Code?

It is the 18-character identifier that mainland China assigns to each registered company and to other organisations, such as branches, individual businesses and social organisations, under a 2015 State Council plan and national standard GB 32100-2015. It is printed on the business licence and stays the same for as long as the entity exists, even if its name, address or legal representative changes.

Is the code the same as a company registration number?

Since 2015 the Unified Social Credit Code replaces the older 15-digit registration number and the 9-character organisation code. A licence issued before then may still show the old numbers.

The code passes but the company name looks different. Why?

A code identifies a legal entity, not a brand. The English name on a quotation is usually a trading name chosen by the seller. Compare the Chinese legal name on the licence, not the English one.

Can a valid code belong to a company that no longer exists?

Yes. The code stays valid for a company that has been deregistered or revoked. Registration status lives in the registry, not in the code.