The value of yuan, China's currency Renminbi, hit new high against U.S. dollar Thursday as the central parity rate of the yuan was set at 6.6582 per U.S. dollar, according to the data released by the China Foreign Exchange Trading System.

Thursday's central parity rate beat the previous record of 6.6693 on Oct. 13.

The yuan has picked up its strength against the U.S. dollars and seen increased volatility in the trading days since the People's Bank of China (PBOC), the central bank, announced on June 19 this year to increase exchange rate flexibility.

Based on Thursday's central parity, the Chinese currency has strengthened against the U.S. dollar by about 2.48 percent from the rate of 6.8275 per U.S. dollar that was set a day before the PBOC's pledge to increase flexibility.

On China's foreign exchange spot market, the yuan can rise or fall 0.5 percent from the central parity rate during trading each day.

The PBOC released the yuan's central parity rates against a basket of currencies -- the U.S. dollar, the euro, the Japanese yen, the Hong Kong dollar, the British pound and the Malaysian Ringgit.

The yuan's parity rate against the euro was set by the central bank at 9.3491 Thursday, lower from 9.294 on Oct. 13, the previous trading day.

The yuan's rate against 100 yen was 8.1611 Thursday, compared with 8.1477 on Wednesday.

The yuan's rate against the British pound was 10.6192, compared with 10.5255 on the previous trading day.

The central parity of RMB against the U.S. dollar is based on a weighted average of enquired prices from all market makers before the opening of the market in each business day.

The central parity of RMB against the other five currencies is based on the central rate of RMB against the U.S. dollar of the same business day as well as the exchange rates of the five currencies against the U.S. dollar at 9 a.m. (0100 GMT) of the same business day in the international foreign exchange market.