A China company chop is an official seal or stamp that legally binds the company to what it has agreed to in the document on which its company chop has been stamped. Under Chinese law, a company chop is strong legal evidence of the agreement of the company whose chop is on the document. The company chop (a.k.a company seal or company stamp) essentially replaces a signature on contracts and other important documents. The company chop binds the entire company, usually no matter who (if anyone) actually puts their signature on the document.