1. loan business: banks and other financial institutions provide short-term, medium-term and long-term loans to enterprises to help them solve the problem of capital shortage.

2. Foreign exchange business: financial institutions provide foreign exchange trading, foreign exchange remittance and other services to help enterprises with international trade settlement and foreign exchange risk management.

3. Credit guarantee: financial institutions provide guarantee services for enterprises, generally referring to providing joint liability guarantee or mortgage guarantee for loans of enterprises, so as to improve the loan amount of enterprises and the success rate of obtaining loans.