legal ground
Article 188 of the Criminal Law of People's Republic of China (PRC)
Staff of banks or other financial institutions who issue letters of credit or other guarantees, bills, certificates of deposit and credit certificates for others in violation of regulations, if the circumstances are serious, shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention; If the circumstances are especially serious, he shall be sentenced to fixed-term imprisonment of not less than five years.
Article 200
Where a unit commits the crimes specified in Articles 192, 194 and 195 of this section, it shall be fined, and the persons who are directly in charge and other persons who are directly responsible shall be sentenced to fixed-term imprisonment of not more than five years or criminal detention and may also be fined; If the amount is huge or there are other serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than five years but not more than ten years and shall also be fined; If the amount is especially huge or there are other especially serious circumstances, he shall be sentenced to fixed-term imprisonment of not less than 10 years or life imprisonment and shall also be fined.