1. First of all, you can exchange some Thai baht at Bank of China in China or Industrial and Commercial Bank of China before departure, and the exchange rate of Industrial and Commercial Bank of China is higher. Try changing it at China Industrial and Commercial Bank.

The best way is to take RMB cash or US dollars to a super-rich Thai currency exchange chain, where the exchange rate is also the best. You can find the shops near you by searching superrich on the map. Superrich pays dividends in green, which is said to be different companies. There is a saying that the green exchange rate is better. I have changed both places, and the exchange rate is basically the same.