In China, where foreign exchange control is implemented, foreign exchange quotations are selected on the basis of the central bank's announcement of the central parity rate of RMB against other major countries in the inter-bank foreign exchange market the day before. During trading hours, all foreign exchange quotations are dynamic and updated in real time.

According to the latest exchange rate of Singapore dollar against RMB announced by the central bank, 1800 Singapore dollar (SGI) can be converted into 8,400.42 RMB yuan (CNY), and the calculation basis is shown in the following figure.