Verifying Chinese Public Security Bureau Corporate Seal Registrations
Validating Chinese corporate seals requires cross-referencing the thirteen digit PSB filing code against provincial police databases before contract execution.
Contract Seal Dimensions
Meaning
Legal standards in China dictate specific physical measurements for corporate stamping devices used on commercial agreements. Under local regulations, contract seal dimensions are standardized to ensure authenticity and prevent fraudulent reproduction. This metric applies to all registered enterprise entities operating within mainland jurisdictions but does not govern foreign parent companies signing documents abroad.
Physical Standard
Sizing rules for enterprise stamps vary according to the specific corporate entity type and the intended document class. Circular contract seal dimensions for limited liability companies are fixed at 40 millimetres in diameter, featuring a central five-pointed star. Joint ventures and foreign-invested enterprises occasionally deploy oval designs measuring 45 by 30 millimetres.
These specific shapes allow rapid visual screening by bank clerks and customs officials during trade audits and contract reviews.
Regulatory Authority
Municipal public security bureaus supervise the production of all official stamping devices. They issue manufacturing permits only to licensed carving shops that strictly implement these contract seal dimensions.
Operational Compliance
Commercial banks and state agencies reject documentation bearing stamps that deviate from legal size templates. If contract seal dimensions are altered or non-standard, the associated agreement risks being declared void under judicial review. Entities verify these measurements using precise caliper tools during internal compliance checks.