China's stock index futures closed lower Thursday with the contract for May, the most actively traded, down 0.4percent from the previous trading day to 3,120.4.
The ChiNext Index, launched by the Shenzhen Stock Exchange (SZSE) on June 1, 2010, rose 1.17 percent, or 10.61 points, to 914.59 Thursday.
Chinese shares closed slightly higher Thursday with the benchmark Shanghai Composite Index up 6.39 points, or 0.22 percent, to 2,872.40.
China's newly-added foreign exchange reserves since 2003 have lost about $271.1 billion by the end of 2010 as a result of the depreciation of the US dollar.
The value of Chinese currency renminbi (RMB), or the yuan, continued to weaken on Thursday after the record high of 6.4990 per US dollar set on April 29.
Stocks on the Chinese mainland fell the most in two months after the government said taming inflation is "critical".
China's high foreign exchange reserves are the major cause of excess liquidity, said Yi Gang, deputy governor of the People's Bank of China (PBOC) and head of the State Administration of Foreign Exchange.
China's top four State-owned banks lent 260.6 billion yuan ($40.1 billion) in new yuan loans in April, slightly higher than the 242 billion yuan issued in March, said a Reuters report.
Conditions are not ripe at present to freely float the yuan, Chinese economists said on Wednesday after US Treasury Secretary Timothy Geithner again pressed China on reform of its financial system.
China Minsheng Banking Corp Ltd said it has received the go-ahead from regulators to set up three more rural banking units, continuing a trend among domestic lenders to tap into the country's rural area.
China's central bank said on Wednesday that it would auction 6 billion yuan ($923 million) of three-month bills in its open market operations on Thursday, down from 11 billion yuan of such bills sold last week.
Hong Kong stocks fell 318.01 points, or 1.35 percent, to close at 23,315.24 on Wednesday.