ZHENGZHOU -- Rapeseed dreg options started trading on the Zhengzhou Commodity Exchange (ZCE) in Central China's Henan province Thursday.

"The newly-launched options will form an effective linkage with the existing rapeseed oil and rapeseed dreg futures, which will improve the risk management system of China's oil-bearing crops industry," said Xiong Wei, chief supervisor of the ZCE.

Xiong said the options will be conducive to forming more reasonable prices of rapeseed dreg futures, improving the market-oriented pricing mechanism of rapeseed dreg prices and increasing the authority of prices of the futures.