SHANGHAI stocks soared in the morning session, helped by gains of heavily weighted financial firms, commodity producers and property developers.
The key Shanghai Composite Index advanced 1.05 percent to 1,997 points. Turnover was 43.3 billion yuan (US$7.1 billion) by midday.
The market advanced after the People's Bank of China, the central bank, injected 17 billion yuan into the country's money market via seven-day reverse repurchase agreements.
This is the first liquidity injection through an open market operation in five months.
Lenders rose among financial firms. The Industrial and Commercial Bank of China Ltd, the nation's largest lender, added 0.5 percent to 3.91 yuan; Industrial Bank Co gained 2.3 percent to 9.34 yuan, and China Minsheng Banking Corp increased 2.8 percent to 8.38 yuan.
Non-ferrous metal shares led the gain of commodities stocks. Inner Mongolia Baotou Steel Rare-earth (Group) Hi-tech Co, China's biggest producer of rare earth materials, surged 4.4 percent to 24.35 yuan. Xiamen Tungsten Co jumped 4.4 percent to 28.66 yuan.
Most property developers gained amid optimism over their earning reports. Poly Real Estate, China's second-largest developer, rose 3.8 percent to 10.06 yuan. Gemdale Corporation surged 3.8 percent to 6.59 yuan.
Market gain was narrowed by the decline of IT firms, media companies and medical device producers.