Verifying Secondary Chop Authority in PRC Master Supply Agreements
Verify secondary contract chops against Public Security Bureau 13-digit codes and secure a primary-chopped Power of Attorney to prevent non-authorization defenses.
13 Digit Seal Security Code
Meaning
Unique identification numbers assigned by Chinese public security authorities establish the official administrative registration of corporate seals. A 13 digit seal security code is etched directly onto the face of an official corporate chop in Mainland China, linking the physical impression directly to the filing system maintained by the Public Security Bureau. Imprinting a chop without this registered sequence leaves the executing party vulnerable to legal challenges regarding signatory authority.
Verification Protocol
Verification procedures require a party to cross-reference the impression on a commercial instrument with the central public security database. The 13 digit seal security code encodes specific administrative metadata, including the district code and the enterprise registration number. Searching this sequence on provincial public security administration portals displays the registered enterprise name alongside the current status of the physical seal.
Discrepancies between the printed sequence and the online registry record indicate an unrecorded impression or a counterfeit instrument, preventing legitimate operational execution.
Administrative Traceability
Enterprise security filings restrict seal carving to licensed shops authorized by municipal public security organs. Entering the 13 digit seal security code into municipal verification systems confirms that the physical seal was produced under legal supervision. Administrative regulations mandate that lost or compromised chops must be canceled in the database before a replacement sequence can be assigned.
Legal Enforcement
Civil courts in China evaluate contract validity by checking whether a contested impression matches official police records. Presenting a 13 digit seal security code alongside a matching impression creates a legal presumption of corporate intent. Rebutting this presumption requires the challenging party to present forensic evidence of forgery or prove unauthorized physical access.
Corporate liability remains attached to transactions executed with registered seals unless official notice of loss was filed prior to contract execution.