China stock index futures close mixed Tuesday

China's stock index futures closed mixed on Tuesday, with the contract for July, the most actively traded, up 0.02 percent to close at 2,163 points.

The August contract remained flat at 2,161.8 points. The September contract lost 0.04 percent to end at 2,163.8 points. The December contract closed 0.07 percent lower at 2,174.6 points.

The stock-index contracts, agreements to buy or sell the Hushen 300 Index at a preset value on an agreed date, are designed to allow investors to bet on and profit from either gains or declines in the market.

The index futures was launched at the China Financial Futures Exchange (CFFEX) and started trading from April 16, 2010. The CFFEX has set the base value for all the four contracts at 3,399 points.