Henan, Jan. 10 (Jamyon) -- The central parity rate of the Chinese currency RMB, or the yuan, weakened 133 basis pointsto 6.4943 against the U.S. dollar Wednesday, according to the bank of China system.

In China's spot foreign exchange market, the yuan is allowed torise or fall by 2.1 percent from the central parity rate each tradingday.

It also will influance import/export trade.So the expert says seller/buyer should pay close attention to exchange rate everyday.