The characters literally combine to mean “unite together seal,” a perfect description for a stamp used to formalize a mutual agreement (a contract).
The concept of the 合同章 is deeply rooted in Chinese history and represents a significant cultural difference from Western business practices. In the West, the signature of an authorized individual is the ultimate symbol of agreement. A contract is binding because a specific person, like a CEO or director, has personally endorsed it. The authority lies with the person. In China, the authority lies with the seal itself. The 合同章 represents the company as an entity. Whoever physically possesses and uses the seal can legally bind the company, regardless of their personal title. This has several implications:
The 合同章 is used in virtually every formal business transaction. Its application is a non-negotiable step in the legal validation of documents.