Credit cooperatives can sue for loans. If the borrower fails to repay the loan as agreed, the credit cooperative may sue the borrower and the debtor within 2 years after the repayment date agreed in the loan contract or within 3 years from the date when the right holder knows or needs to know that the right has been damaged. It is necessary to prepare evidence materials such as loan contract, borrower's identity information and indictment when suing.