Country mandatory legislation

Your invoice shall comply with any country mandatory legislation.

Chinese legislation:

According to Chinese State Administration of Foreign Exchange (SAFE) regulation, a Custom Declaration Form (CDF) is required as a supporting document for each invoice for the foreign payment. This means, all foreign vendors that deliver to China need to follow the below requirements in order to have their payments processed efficiently:
1. The amount on the Pro-forma invoice (or similar document provided to China for the shipment arrangement) should be the same as on the final commercial invoice. Miscellaneous cost in the final commercial invoice should be included in the pro-forma invoice.
2. Enter the Pro-forma invoice number into the formal invoice as reference.
3. Make sure Pro-forma invoice value is correct. Once MHI Vestas China finalizes the Custom Declaration, any changes to the final commercial invoice is not accepted and invoices will not be paid.