There are differences between these two winning codes.

1. The 18-digit Zhongzheng code is mainly used for unified registration and management of enterprises in taxation, finance, social security, industry and commerce, customs, etc.; the 16-digit Zhongzheng code is mainly used for bank credit registration and funds. Used within some financial institutions such as flow registration.

2. The 18-digit Zhongzheng Code is stipulated by the State Administration of Taxation and is uniformly distributed and registered. It is the only identification code for enterprises when handling relevant business; the 16-digit Zhongzheng Code is a kind of transition period, and An identification code that has the same function as the original loan card code.