Is it illegal to buy and sell a company's business license?

Break the law. According to the provisions of the Criminal Law of People's Republic of China (PRC), it is illegal to sell a business license knowing that it belongs to a certificate issued by a state organ, which will constitute a crime of forging, altering, buying or selling official documents, certificates and seals of a state organ. The perpetrator may be sentenced to fixed-term imprisonment of not more than three years, criminal detention, control or deprivation of political rights, and fined.