1 for government data. For export-oriented enterprises, the data of government departments can be used to verify their self-operated import and export amount and year-on-year changes. The data of government departments are more accurate, but it is necessary to further verify the off-balance-sheet sales and consignment of borrowers.

2. Check tax receipts and invoices. For production-oriented and trade-oriented enterprises, you can check their invoiced sales income by looking at the turnover tax return of the enterprise in the last one to two years.

3. Look at the vouchers in the ledger. Small and medium-sized enterprises have the ability to set up account books, and most of them set up general ledger, subsidiary ledger and deposit journal.

4. Check the running water and the original contract. The account manager needs to accompany the on-site printing and check the corporate account and the actual controller.