1. Investigation: First of all, we should investigate the non-performing loans involved, determine what caused these loans, and find out whether there are problems such as insider's illegal operation.

2. Verification responsibility: According to the investigation results, it is necessary to investigate the responsibilities of the corresponding responsible persons, including sales personnel, credit approvers, etc. And according to the situation, disciplinary action or legal sanctions will be taken against internal employees.

3. Strengthen the risk control mechanism: For the problem of internal staff buying the company's non-performing loans, the company needs to strengthen the risk control mechanism and establish a sound internal control system to ensure that employees will not have illegal operations and conflicts of interest in their business operations.