That is, the China Foreign Exchange Trading Center authorized by the People's Bank of China announces the central parity of RMB against the US dollar at 9: 0015 every working day as the central parity of the spot foreign exchange market (including off-site and matchmaking methods) and bank counter transactions on that day.

The formation method of the central parity of RMB against the US dollar is as follows: China Foreign Exchange Trading Center makes an inquiry to all market makers in the inter-bank foreign exchange market every day before the opening of the inter-bank foreign exchange market, and takes all market makers' quotations as calculation samples of the central parity of RMB against the US dollar. After excluding the highest quotation and the lowest quotation, the remaining market makers' quotations are weighted and averaged to get the central parity of RMB against the US dollar on that day, and the weight is comprehensively determined by China Foreign Exchange Trading Center according to the trading volume and quotations of the quotations in the inter-bank foreign exchange market.