
Standard Security Verification Rules for PRC Corporate Seals
Verify PRC corporate seals by matching physical metrics and 13-digit PSB codes against government registry records before binding contracts are signed.
Due diligence step involves checking the impression of a corporate seal against the specimen on file at the local bank or the Public Security Bureau database. This official chop verification is a standard procedure for confirming the authenticity of a document and the authority of the person who presented it. It is used by banks, government agencies, and commercial partners to protect themselves from fraud and unauthorized transactions.
The process involves comparing the physical characteristics of the seal mark with a known genuine version to ensure they are identical. It applies to every formal commitment made by a Chinese legal entity, from the opening of a bank account to the signing of a merger agreement. The boundary of the verification is the moment when the checker is satisfied that the seal is legitimate and the document can be processed.
Direct comparison between the disputed seal and a registered sample is the most reliable way to detect a forgery. In an official chop verification, the bank or government official places the document next to the original specimen card provided by the company. They look at the size of the circle, the thickness of the lines, and the specific font used for the company name.
Even the tiniest variation in the spacing of the characters can indicate that the seal is a fake. The checker also looks for the identification number that is often carved into the bottom of the seal. In many cases, they use a transparent overlay or a digital scanner to find a perfect match.
This level of detail is necessary because a stolen or forged seal can be used to drain a company’s bank accounts or sell its assets. The specimen card is the definitive reference point for the company’s legal identity.
Modern systems allow for the instant verification of seal records through a centralized digital platform. Under the current rules for official chop verification, the Public Security Bureau maintains a database of every legally registered seal in China. This database includes a high resolution image of the seal and the details of the company it belongs to.
Some banks and large corporations have been granted access to this system to speed up their due diligence process. When a document is presented, the clerk can enter the company’s social credit code and see the registered seal on their screen. This digital check is much faster and more accurate than a manual comparison of paper cards.
It also allows for the verification of seals from other provinces, which was difficult in the past. The use of technology has made it much harder for criminals to use fake chops in the Chinese market. It provides a high level of security for both domestic and international trade.
Identification of common forgery techniques is a necessary skill for anyone involved in the verification process. Despite the security measures, criminals still try to create fake chops to commit fraud. During an official chop verification, the checker looks for signs of a computer generated or photocopied seal.
A real seal impression has a slightly uneven texture and a distinct red color that comes from the physical application of ink to paper. A printed seal often looks too perfect or has a different shade of red. The checker also looks for signs that a seal was carved by an unlicensed shop, which might use the wrong font or a cheaper material.
If a seal looks suspicious, the clerk may ask for additional identification from the person presenting the document or contact the company directly. This vigilance is the final line of defense against financial loss. It ensures that only authorized transactions are completed and that the integrity of the corporate system is maintained.
Companies must therefore be very careful with their seals and report any loss or theft immediately to prevent their use in fraudulent activities.

Verify PRC corporate seals by matching physical metrics and 13-digit PSB codes against government registry records before binding contracts are signed.
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