Find out the reason for the large difference in amount. Are there few goods declared for import? Sales to other overseas enterprises without import declaration? Or are some goods imported in the name of other enterprises? Your company must know the specific reasons. If there are reasonable reasons, you can directly explain the situation to the foreign exchange bureau.

Or, if the remittance does not exceed 180 days from now, sign a refund agreement or supplementary contract with overseas customers, indicating that part of the prepaid payment needs to be returned for some reason, and then return the difference to China, and account it in the bank with this supplementary material.