Index posts longest winning streak this year

China's stocks rose for a fourth day, driving the benchmark index to its longest winning streak this year, led by commodities producers on optimism the government's stimulus plan is working.

Aluminum Corp of China Ltd and Zijin Mining Group Co climbed more than 4 percent. Shanghai International Port (Group) Co advanced 8.4 percent, the most in two months, after Caijing reported that the city received the central government's approval for its plan to be an international shipping hub.

The Shanghai Composite Index added 42.03, or 1.9 percent, to 2,265.76 at the close, the highest since Feb 23. The CSI 300 Index, measuring exchanges in Shanghai and Shenzhen, gained 2.1 percent.