China will improve the RMB exchange rate formation system, said the official, echoing a joint statement from the third EU-China Economic and Financial Dialogue held in Brussels on Wednesday.

In the statement, China promised to carry out appropriate macroeconomic policies including a prudent fiscal policy as well as a prudent and moderately tight monetary policy, deepen structural reforms and speed up the transformation of economic growth patterns so as to achieve sustainable growth.

The official did not reveal when and to what extent the floating band of yuan would be widened.

"The yuan exchange rate will be managed in a rational and balanced manner," he said.

Along with yuan exchange rate reform, China will adopt a package of measures to reduce its massive trade surplus and curb excessive liquidity, said the official, citing policies including encouraging consumption and domestic demand, further opening up the domestic market, increasing imports and promoting investment overseas.

The central parity rate of the yuan, also known as the Renminbi (RMB), stood at 7.5951 yuan to one US dollar on July 3, the first time the yuan's value has exceeded the 7.60 mark after it breached 7.7 level on May 8.

The cumulative appreciation since July 21, 2005, when China discontinued the yuan peg to the greenback, is more than 7.5 percent.

The central bank allows a trading band of 0.5 percent on either side of the midpoint on the inter-bank market.

The stable growth of the national economy and the upcoming 2008 Olympic Games have boosted investors' confidence and have played a role, according to Tan Yaling, a research analyst with the Bank of China.

The gradual revaluation of the yuan would be good for the country's stability in terms of economic growth, Tan said.