Foreign companies in Chinese Mainland often underestimate the legal and operational significance of company chops. They are not merely administrative stamps. They sit at the center of contract execution, banking control, invoice management, and internal authorization. The real risk lies not only in who holds the chop, but in whether the business can show clear authority, proper approval, and reliable records. This article explains the main types of chops, the most common control failures, and the practical steps foreign-invested businesses should take to reduce legal and operational exposure.