If your US$ 6,543.8+0,000 comes from foreign exchange speculation and remitted to China, it will definitely come from overseas investment institutions to your domestic private account, so be careful.
The solution is to open an account with a foreign bank, remit it to a foreign bank account, and then transfer it out of the foreign bank account to avoid the words "overseas investment institutions".
Foreign exchange by individuals in China is limited to 50,000 USD per year, 1 10,000 USD. Find an underground bank to exchange money. It is said that there will be an extra price difference of dozens of points.