Legal analysis: the limitation period of prosecution is determined according to the severity of legal punishment for various crimes:1; If the statutory maximum penalty is less than five years of fixed-term imprisonment, the limitation period for prosecution shall be five years; 2. If the statutory maximum penalty is more than 5 years but less than 10 year, the limitation period for prosecution is 10 year; 3. If the statutory maximum penalty is fixed-term imprisonment of 10 years or more, the limitation period for prosecution is 15 years; 4. If the statutory maximum punishment is life imprisonment or death penalty, the limitation period for prosecution shall be twenty years. 20 years later, if it is deemed necessary to prosecute, it shall be submitted to the Supreme People's Procuratorate for approval.

Legal basis: Article 225 of the Criminal Law of People's Republic of China (PRC), in violation of state regulations, commits one of the following illegal business operations, disrupting market order, and if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention, and shall also, or shall only, be fined not less than one time but not more than five times the illegal income; If the circumstances are especially serious, he shall be sentenced to fixed-term imprisonment of not less than five years, and shall also be fined not less than one time but not more than five times his illegal income or his property shall be confiscated: (1) dealing in franchise, monopoly goods or other commodities whose business is restricted by laws and administrative regulations without permission; (2) buying and selling import and export licenses, import and export certificates of origin and other business licenses or approval documents stipulated by laws and administrative regulations; (three) without the approval of the relevant competent departments of the state, illegally engaged in securities, futures, insurance business, or illegally engaged in fund payment and settlement business; (four) other illegal business activities that seriously disrupt the market order.