Chinese shares closed mixed Monday with the benchmark Shanghai Composite Index up 2.25 points, or 0.08 percent, to 2,909.14.
Stocks on the Chinese mainland rose on Friday, as the Group of Seven nations intervened in the foreign exchange market to support Japan, and as reconstruction spending prospects lifted the profit outlook of metals companies.
The required reserve ratios for banks were raised by 50 basis points on Friday - the ninth hike since the beginning of 2010. The measure will be effective from March 25, after which the reserve requirement ratio for large commercial banks will be 20 percent.
Chinese shares closed slightly higher Friday with the benchmark Shanghai Composite Index up 9.59 points, or 0.33 percent, to 2,906.89.
The People's Bank of China (PBOC), or the central bank, auctioned 50 billion yuan ($7.61 billion) of three-month bills at a yield of 2.7944 percent on Thursday, temporarily easing speculation of an approaching interest rate hike.
The Chinese securities regulator said on Thursday that it had approved lead futures contracts designed by the Shanghai Futures Exchange.
Investor concerns about Japan's radiation leak has prompted a rally in stocks of companies with a connection to anti-radiation products on China's A-share market.
China's Ministry of Finance (MOF) said Wednesday it will sell 30 billion yuan ($4.5 billion) worth of book-entry treasury bonds this week.
Stocks on the Chinese mainland rebounded on Wednesday from a three-week low after an indicator of the nation's economic outlook advanced and investors speculated that recent declines spurred by Japan's biggest earthquake on record were excessive.
Chinese commercial banks' balance and ratio of non-performing loans (NPLs) fell remarkably under the industry's risk control drive, the banking regulator said Wednesday.
China is trying to diversify its foreign reserve portfolio to avoid risks, analysts said.
The preliminary estimate of the Macao Special Administrative Region's foreign exchange reserves amounted to 196.2 billion patacas ($24.44 billion) at the end of February 2011, according to the figures released by the Monetary Authority of Macao Tuesday.