Public Security Bureau Registration Rules for Chinese Corporate Seals
PSB seal recordation binds corporate authority through a 13-digit code, overriding signatures unless fraudulent creation meets explicit civil code standards.
Die
Commercial entities legally established in the People’s Republic of China operate through physical instruments of authority rather than handwritten signatures. Corporate will manifests through carved chops, known formally as corporate seals. Doing business without understanding the physical construction and administrative registration of these instruments creates immediate structural exposure.
The Public Security Bureau strictly regulates the creation of every corporate seal through a centralized security system designed to prevent commercial fraud, unauthorized duplication, and corporate hijacking.
Physical Specifications and Security Standards
Police regulations issued by the Ministry of Public Security dictate the dimensions, font types, layout, and materials for corporate seals. Standard seals must follow exact geometric metrics matched to their legal function. The main official corporate seal, which carries ultimate legal authority for general corporate acts, is circular and forty millimeters in diameter.
In certain jurisdictions or for specific state-owned enterprises, that dimension extends to forty-two millimeters. At the center of the seal matrix sits a fourteen-millimeter five-pointed star, framed along the upper arc by the company’s full registered Chinese name in simplified Chinese using standard songti typography.
Specialized corporate seals use distinct shapes and sizes to prevent confusion during transactions. The contract seal, stamped on commercial agreements and purchase orders, is an ellipse measuring fifty-eight millimeters horizontally by thirty-eight millimeters vertically. Financial seals, used on bank transfer authorizations, tax filings, and commercial paper, use an oval shape measuring thirty-eight millimeters by twenty-six millimeters.
The legal representative seal ~ assigned to the individual named on the business license ~ is a square or rectangle measuring eighteen to twenty millimeters per side.
| Seal Classification | Geometric Shape | Standard Dimensions | Mandatory Inscription Layout | Security Code Placement |
|---|---|---|---|---|
| Official Corporate Seal | Circular | 40mm or 42mm diameter | Five-pointed star with circular corporate name | 13-digit code along lower rim |
| Contract Seal | Elliptical | 58mm x 38mm oval | Corporate name with specialized text string | 13-digit code along lower inner curve |
| Financial Seal | Elliptical | 38mm x 26mm oval | Corporate name with financial department marker | 13-digit code along lower inner curve |
| Legal Representative Seal | Square or Rectangular | 18mm x 18mm or 20mm x 20mm | Personal name of registered legal representative | Optional embedded micro-chip |
| Customs Declaration Seal | Elliptical | 50mm x 36mm oval | Corporate name with customs registration number | 13-digit code along lower rim |
The seal’s material affects both durability and resistance to tampering. Regulations allow high-density brass, natural horn, organic polymers, and red acrylic resin. Soft rubber or cheap synthetics degrade quickly under heavy use, distorting stroke width and fine dimensions.
Forensic examiners evaluate character stroke width, kerning variances, and spatial alignment when judging authenticity in civil litigation. A worn matrix distributes ink unevenly, which can trigger false forgery flags during automated image alignment checks.
Designated Carving Units and Embedded Micro-Chips
Engravers working without police authorization produce legally void dies. Regulations restrict seal creation to designated carving units holding a Special Industry License from the local Public Security Bureau. These authorized shops use computer-numerical-control engraving lathes linked to municipal police databases.
As the machine cuts the physical matrix, it carves a unique thirteen-digit serial number directly onto the lower outer margin of the seal face.
The physical matrix cut by an authorized police engraver creates an indelible spatial baseline against which court appraisers evaluate questioned impression marks.
Major commercial jurisdictions now require electronic anti-counterfeiting chips embedded inside physical seal matrices. High-frequency RFID chips are set inside the acrylic or metal body while the lathe turns the piece. Operating at thirteen-point-fifty-six megahertz under international encryption standards, the chip holds a read-only cryptographic string matching the thirteen-digit code laser-etched on the outer rim.
When officers or bank tellers place the chop on a dedicated scanner, the device reads the hash and checks the municipal police database to confirm authenticity on the spot.
Police databases log every cut. The engraver submits an encrypted log of physical properties, cut depth, material density, and operator timestamps to municipal police servers. In Eastern China, corporate acquisition dossiers show foreign buyers using chops made by unauthorized neighborhood print shops during company setup.
These unregistered stamps left the businesses exposed, making core supply contracts vulnerable to challenge during later contract disputes.
Precision varies even among authorized engravers due to differences in toolhead wear and spindle calibration.
Record
A company must record all physical seal matrices in public security archives as soon as it obtains legal status. Once the State Administration for Market Regulation issues the business license, the enterprise has to complete formal seal filing before signing contracts, opening bank accounts, or filing taxes. Operating with unrecorded chops leaves an entity unable to enforce its contracts or protect itself against fraudulent obligations signed in its name.
The Administrative Registration Workflow
Police filing creates the official legal link between a stamped impression and the corporate identity on record. The legal representative ~ or an authorized proxy with a notarized power of attorney ~ must submit documents at a public security window or through an online municipal portal. The submission requires the original unified social credit business license, the legal representative’s national ID, and signed corporate resolution forms.
Foreign-invested companies face additional verification. If the registered legal representative is a foreign national living outside mainland China, police regulations require a passport copy verified by local exit-entry authorities or authenticated by a Chinese embassy or consulate. Officials check that the person authorizing the seals is formally recorded in the commercial registry system.
Once verified, the Public Security Bureau issues a Seal Filing Receipt showing the recorded impressions and their assigned thirteen-digit identification numbers.
Many cities now process seal filings through integrated corporate setup systems. Administrative service centers link market supervision approval directly with police seal authorization. Once company formation is approved, corporate metadata goes to the police seal database automatically.
The enterprise picks a carving shop from an approved portal, which engraves the seals and uploads high-resolution scans of the impressions to state servers within twenty-four hours.
Failure Modes in Seal Filing Procedures
Filing errors and registration shortcuts create severe liabilities that surface during commercial disputes, often undermining contract validity and internal corporate governance.
- Unfiled Secondary Chops created by local operational teams for regional offices fail to bind the enterprise in court if they lack public security recordation.
- Mismatched Entity Names following a name change where management updates the business license but forgets to surrender and re-file the physical seals.
- Unauthorized Representative Filings where an outgoing director records seal impressions without shareholder approval during internal governance disputes.
- Omitted Filing Receipts leaving the enterprise unable to produce official police records proving the legal standing of its main contract chop.
Delays in syncing regional police databases create temporary blind spots. Major commercial centers update records in real time, but smaller precincts often batch filings, creating a forty-eight to ninety-six hour lag between seal delivery and national database visibility. Contracts signed during this window carry verification risks if a counterparty runs a real-time code check against public portals.
Public security recordation links a physical matrix to corporate liability through an encrypted thirteen-digit database identifier.
Verifying that a counterparty’s seals are properly recorded is basic risk management before signing major transactions. A company can confirm filings by asking for the Seal Filing Receipt or running a digital check on provincial public service portals. Matching the physical stamp against the police archive confirms that the chop carries full administrative recognition.
Contract terms should explicitly link document execution to public security seal filings. Clear execution clauses prevent counterparties from later repudiating agreements signed with secondary or unrecorded chops. Using explicit execution language in cross-border agreements enforces this discipline.
This agreement enters into full legal force only upon execution by the authorized legal representative and the concurrent application of the official corporate seal whose thirteen-digit public security registration code matches the official filing receipt issued under recordation archive number 3101150894221.
Custody
In mainland China, practical control of an enterprise sits with whoever holds its physical seals. The person or faction in possession of official chops can sign binding agreements, transfer assets, start or drop lawsuits, and change bank instructions regardless of board votes. Establishing tight physical custody protocols and clear approval procedures is essential to protect corporate integrity.
Governance Mechanics and Segregation of Physical Powers
Handing all corporate seals to one executive creates severe risk. Foreign-invested enterprises often make the mistake of leaving the official seal, financial seal, contract seal, and legal representative seal with a single local general manager without oversight. If a dispute or firing occurs, that executive can lock out board members, control bank withdrawals, and issue binding corporate guarantees to third parties.
Sound custody requires separating physical access to the seals. The official corporate seal and contract seal should sit with an appointed corporate secretary or legal manager, while the financial seal stays under the separate control of the senior finance controller. The legal representative seal should stay with the named individual or an independent trustee.
Mandating dual authorization for banking transactions and major contracts prevents unilateral control.
| Transaction Scope | Primary Seal Required | Secondary Seal Required | Mandatory Sign-off Authority | Custody Verification Action |
|---|---|---|---|---|
| Commercial Contracts > RMB 1M | Contract Seal | Official Corporate Seal | Board Resolution & Legal Counsel | Physical usage log check & match filing code |
| Bank Transfers & Wire Approvals | Financial Seal | Legal Representative Seal | Finance Director & General Manager | Dual key access to physical smart safe |
| Regulatory & Tax Filings | Official Corporate Seal | Financial Seal | Corporate Secretary | Electronic approval log timestamping |
| Litigation Documents & Powers of Attorney | Official Corporate Seal | Legal Representative Seal | Board of Directors explicit resolution | Physical inspection of 13-digit matrix rim |
Smart safes equipped with biometric access, internal cameras, and automated usage logs reduce theft risks. Modern chop cabinets lock seals inside compartments that open only when an encrypted approval token is generated through corporate ERP software. The system logs user identity, ticket numbers, access duration, and document images before releasing the lock.
When Does an Unregistered Seal Bind the Enterprise?
Chinese court decisions under Civil Code jurisprudence address situations where officers stamp contracts with unregistered, secondary, or unauthorized seals. Judges balance a company’s internal authorization failures against the reasonable reliance of good-faith third parties. If a general manager or officer with apparent authority signs an agreement using an unrecorded secondary seal, courts generally hold the enterprise to the contract to preserve commercial transaction stability.
- The legal representative or registered general manager executes the contract using a secondary unrecorded seal within the scope of their apparent authority.
- The counterparty acts in good faith, having verified the officer’s corporate identity and official business license before signing.
- The enterprise accepts material benefits, deliveries, or financial advances under the signed agreement without prompt written protest.
- Internal corporate rules restricting seal use were never formally disclosed in writing to the external counterparty.
Apparent authority overrides internal custody rules when third parties exercise reasonable diligence. If a company lets an executive hold its business licenses and work out of official offices, outside parties can reasonably assume that seals stamped by that executive carry authority. Defending against unauthorized seal use requires proving that the counterparty acted in bad faith or knew the executive lacked authority to use the chop.
Apparent authority protects external contract reliance whenever an enterprise allows an executive physical control over corporate business licenses and office premises.
Physical custody logs serve as critical evidence in seal misuse litigation. Custodians should maintain detailed ledgers for every use of an official chop, capturing document titles, counterparty names, transaction values, approval tokens, timestamps, and custodian signatures. Forensic examiners and courts view incomplete or backdated logs with heavy skepticism.
Control over corporate business licenses dictates ultimate control over physical seals. While holding physical chops gives day-to-day administrative power, holding the original business license provides the legal basis to revoke compromised chops through police procedures and obtain replacements.
Contest
Commercial litigation in Chinese courts often turns on whether seal impressions on contract documents are authentic and authorized. Defaulting parties frequently disavow agreements by claiming seals were forged, applied without authority, or altered. Resolving these disputes takes technical forensic analysis, clear evidentiary rules, and coordination between civil courts and police fraud investigators.
Forensic Appraisal Mechanics and Microscopic Image Analysis
If a party challenges a seal impression during civil litigation, the judge orders a forensic appraisal by an accredited laboratory. Examiners compare the disputed mark against verified baseline samples, known as comparison exemplars ~ historical impressions on government filings, tax records, or bank documents created around the same time as the contract.
Forensic testing examines physical micro-details that distinguish real impressions from forged dies or digital prints. Examiners look at character stroke widths, the angles where lines intersect, and how the central five-pointed star aligns with surrounding text. Digital tools also measure ink dispersion, paper pressure gradients, and microscopic tool marks left by the CNC lathe that cut the original die.
| Physical Evaluation Metric | Forensic Testing Methodology | Primary Indication of Authentic Matrix | Primary Indication of Forgery / Duplication |
|---|---|---|---|
| Spatial Character Alignment | High-resolution vector overlay comparison | Exact angular and spatial overlap with baseline archive | Sub-millimeter character shifts or rotational skew |
| Thirteen-Digit Code Geometry | Optical magnification and spatial ratio mapping | Precise numeric font height and border curvature matching | Distorted font kerning or non-standard digit height |
| Ink Substrate Interaction | Chemical ink chromatography & pressure mapping | Natural manual ink absorption and uneven edge bleed | Uniform digital ink layer from color laser printing |
| Die Erosion Characteristics | Comparative micro-defect tracking across time | Consistent progressive wear patterns matching age | Static flawless character edges inconsistent with age |
| Micro-Groove Profile | 3D surface topography laser scanning | Identical CNC lathe tool marks on comparison exemplars | Alternative tool marks or smooth molded surfaces |
Ink testing separates genuine stamping from digital printing. Color lasers and inkjets deposit ink on top of paper fibers without leaving pressure impressions. Real stamping compresses the paper fibers and forces oily red paste deep into the cellulose matrix.
Forensic specialists use infrared and ultraviolet light to spot spectral differences between standard red stamp paste and printer toner.
Judicial Interpretation and Evidentiary Burdens
Under judicial interpretations of the Civil Code, the Supreme People’s Court separates the physical authenticity of a seal impression from whether the person stamping it had proper authority. Stamping a contract with a genuine, police-recorded seal creates a strong legal presumption of validity, shifting the burden of proof to the company trying to disavow the deal.
Overcoming that presumption requires convincing evidence of criminal theft, physical trespass, or bad-faith collusion between the seal custodian and the counterparty. If a company cannot show that it maintained reasonable physical custody or filed prompt police reports after losing a seal, courts will enforce the contract. Chinese judicial practice consistently favors transaction certainty over internal corporate oversight failures.
Courts enforce contracts stamped with genuine registered seals unless the enterprise proves criminal theft or third-party bad faith through contemporaneous police records.
If civil litigation exposes potential seal forgery under Article 280 of the PRC Criminal Law, courts often suspend civil proceedings under the doctrine prioritizing criminal investigation. Civil enforcement then halts for twelve to thirty-six months while police collect evidence and prosecute suspects.
Forensic appraisal can establish intentional third-party forgery when an unfiled seal impression on a regional distribution agreement differs by as little as three-tenths of a millimeter in stroke width from the genuine police matrix.
Void
Seals lose legal validity through wear, corporate restructuring, theft, or company dissolution. Ending liability from compromised, lost, or obsolete chops requires completing formal cancellation and replacement procedures with the Public Security Bureau. Leaving physical seals unvoided under police rules leaves an enterprise open to fraudulent claims stamped with discarded matrices.
Revocation and Replacement Workflows for Missing Seals
Losing a corporate seal requires immediate execution of mandatory police revocation procedures. Delaying a public report increases exposure, because contracts signed with stolen seals during the gap are hard to challenge without proving third-party bad faith. Revocation follows a strict administrative sequence set by public security rules.
- Contemporaneous Police Reporting requires filing a loss statement at the local public security precinct to get an official crime report or loss certificate.
- Public Loss Declaration mandates publishing a formal invalidation notice on the National Enterprise Credit Information Publicity System or in a designated regional newspaper.
- Public Security Bureau Cancellation involves presenting the loss certificate and newspaper clipping to update the national seal management database to void status.
- Re-Carving Authorization Approval requires obtaining formal police clearance permits before submitting authorization paperwork to a carving shop.
- New Serial Matrix Generation produces a replacement seal bearing a new thirteen-digit security code distinct from the voided matrix.
Public notices must state the exact entity name, unified social credit identifier, seal type, and the thirteen-digit security code of the missing chop. The notice serves legal warning that instruments stamped with the voided matrix on or after the publication date carry no legal effect. Updating the police database registers the official revocation date across banking and judicial networks.
| Required Documentation Item | Issuing Authority / Source | Mandatory Content Requirements | Administrative Verification Objective |
|---|---|---|---|
| Original Business License (Primary Copy) | Market Supervision Administration | Valid Unified Social Credit Code & current QR code | Verifies active corporate existence and legal standing |
| Legal Representative Identity Verification | National ID Authority / Exit-Entry Bureau | Original ID card or authenticated foreign passport | Confirms real-name authorization of filing applicant |
| Formal Police Loss Certificate | Local Public Security Precinct | Incident record number, timestamp, and officer signature | Establishes official reporting date of physical loss |
| Public Loss Announcement Page | Designated Official Daily Newspaper | Full entity name, voided 13-digit code, Invalidation Notice | Constructive public notice extinguishing apparent authority |
| Shareholder / Board Resolution | Corporate Governance Body | Explicit authorization for seal re-carving & proxy appointment | Validates internal corporate consent for matrix replacement |
Replacing worn or damaged seals is simpler. The company surrenders the old matrix directly to the Public Security Bureau or an authorized carving shop for physical destruction. Technicians destroy the old die by shredding or smelting, record the destruction on video, and issue an official Seal Destruction Certificate.
Companies should never retain retired or damaged matrices in office safes as informal backups.
Seal Surrender during Corporate Dissolution
Winding up a Chinese company requires canceling and surrendering all recorded seals as a final step. The liquidation committee appointed under Market Supervision Administration oversight takes custody of all chops during dissolution, using them strictly to complete tax filings, customs deregistration, severance payouts, and bank closures.
Canceling corporate seal recordations at the public security bureau forms the mandatory legal prerequisite for completing final corporate deregistration.
Once liquidations are finished and tax and customs clearances are in hand, the committee surrenders all physical seals to the Public Security Bureau for cancellation. Police log the revocation, destroy the dies, and issue a Seal Invalidation and Surrender Confirmation. Market supervision authorities will not grant final corporate deregistration without inspecting this destruction certificate.
Courts continue to debate whether contracts signed during the gap between a public loss declaration and the police database update bind a company whose former manager acted with apparent authority.
Redress
Foreign investors and commercial firms operating in mainland China can protect their positions through contract drafting, governance controls, and structured exit plans. Relying on litigation after a dispute occurs introduces unnecessary risk. Setting clear execution standards, cross-border indemnities, and escrow rules for seal custody reduces the risk of corporate hijacking and unauthorized contracts.
Contractual Protection Clauses and Execution Standards
Contracts governed by PRC law should include detailed execution protocols beyond simple signature blocks. Clauses ought to require triple execution: the handwritten signature of the legal representative, the recorded official corporate seal, and a contract seal carrying matching thirteen-digit police registration numbers on every page. Stamping seals across page edges ~ known as edge-stamping or page-bridging chops (骑缝章) ~ prevents counterparties from swapping middle pages in multi-page agreements.
Cross-border joint venture agreements need explicit governance provisions governing seal possession. Joint venture contracts should include representations confirming that all seals are registered with authorized shops and that no unrecorded secondary chops exist. Agreements ought to impose severe liquidated damages if a local partner or manager refuses to hand over physical seals after being removed by board resolution.
| Identified Structural Risk | Preventative Drafting Clause | Physical Control Mechanism | Remedial Escalation Pathway |
|---|---|---|---|
| Rogue Executive Seal Withholding | Mandatory surrender clause with daily liquidated damages | Dual-custody smart safe with biometric access tokens | Immediate police reporting & emergency re-carving filing |
| Unfiled Secondary Seal Application | Explicit contract invalidity clause for unrecorded chops | Mandatory attachment of PSB Seal Filing Receipt | Judicial appraisal & invalidation suit under Civil Code |
| Unauthorized Bank Transfers | Separate custody mandate for legal rep & financial chops | Bank chop card dual-signatory verification requirements | Immediate bank account freeze via judicial asset preservation |
| Page Insertion / Alteration | Mandatory edge-stamping (page-bridging chop) requirement | Continuous physical stamping across paper margins | Forensic ink & paper fiber compression testing |
Contracts should require counterparties to provide certified copies of their Seal Filing Receipt and business license before signing high-value procurement deals. Adding this check to standard compliance routines prevents counterparties from arguing that contracts were signed with legitimate secondary chops unknown to the buyer.
Exit Planning and Seal Custody Escrow Mechanics
Exiting the Chinese market or selling equity requires handling seal transitions carefully. Deals frequently collapse when foreign sellers lose physical control of chops before receiving final payment. At the same time, domestic buyers rarely release funds without taking immediate custody of official seals and original business licenses.
Setting up independent seal escrow arrangements resolves deadlocks during equity transfers or liquidations. Under an escrow protocol, physical seals, bank chop cards, and original licenses are deposited in a neutral smart cabinet at a law firm or trust company. The escrow terms release physical custody only after bank confirmation of full payment or issuance of formal regulatory approvals.
If a local partner holds physical seals hostage during a corporate wind-down, foreign investors should execute a coordinated resolution and police notification strategy. The board votes to remove the legal representative and revoke internal seal authority. Simultaneously, counsel notifies company banks in writing of the dispute, placing temporary holds on bank chop cards to block unauthorized withdrawals.
Judicial asset preservation orders offer another emergency remedy during control battles. Chinese courts can issue injunctions ordering a withholding party to surrender chops, business licenses, and financial records to a court custodian while litigation proceeds. Combining an injunction application with an emergency police re-carving filing provides the leverage needed to restore control when physical custody of seals is compromised.