China's treasury bond futures closed mixed on Monday, with the contract for settlement in September 2017 closing 0.036 percent lower at 97.795 yuan (about 14.43 U.S. dollars).

The December 2017 contract closed 0.005 percent higher at 98.075 yuan. The contract for settlement in March 2018 closed 0.189 percent higher at 98.215 yuan.

The contracts are agreements to buy or sell treasury bonds at a predetermined price and set date. They allow investors to bet on and profit from the movements in the value of the bonds.

The treasury bond futures were launched at the Shanghai-based China Financial Futures Exchange and started trading on Sept. 6, 2013.