Exchange rates: if use dollars or VND payment, according to the us currency or VND: RMB exchange rate.
The deposit contract:
A. the buyer, the seller delay in delivery of the deposit contract obligation to postpone.
B. the buyer fails to perform his contractual obligations, entitled to demand the return of the deposit, The seller shall not perform its obligations under a contract, the deposit in double.
Compensation for loss:
Where a party failed to perform or rendered non-conforming performance, thereby causing loss to the other party, and shall indemnify the due to its default caused to the other party's loss, including contract can benefit from.。
参考资料:有道