If the advance payment does not exceed $30,000, there is no need to apply to the foreign exchange bureau. You can register the contract directly online. After receiving the advance payment, you can register the withdrawal according to the amount on the water bill. The next day, you will have the advance payment, and then you can go to the bank to settle foreign exchange. If you need to apply to the foreign exchange bureau, the procedure is simple. Just call in advance for consultation. Generally, Chinese and English contracts, company seals, code certificates and the like are needed.