The original and duplicate of the business license have the same legal effect, and there is no difference in essence. If there is a difference, it is only a form of representation.
In terms of use, it was originally "must be hung" in an obvious place in the business premises, otherwise it may be fined for not hanging the license; Copies are generally used for going out to handle business, such as handling bank account opening license, enterprise organization code certificate, tax registration certificate, signing contract, etc.
Legal basis: Article 63 of the Regulations on the Administration of the Registration of Enterprise Legal Persons in People's Republic of China (PRC). Enterprises and institutions that engage in business activities without approval and registration shall be ordered to stop their business activities and their illegal income shall be confiscated.