China's first dedicated asteroid mission Options

[yaohua2000]

http://wb.lzbs.com.cn/html/2012-12/27/content_420157.htm

China's first dedicated asteroid mission will be powered by xenon ion engine. The engine has successfully tested in orbit on Shijian-9 satellite on November 7, 2012. The probe will visit three asteroids: make a flyby of the first and take pictures, orbit the second, and land on the third. According to earlier reports, potential targets include 12711 Tukmit, 99942 Apophis and (175706) 1996 FG3.

[Paolo]

does the article give any idea as of the timeline of the mission?
anyway, here is a paper (in Chinese) on the orbit design of a similar multi-target mission using ion propulsion to Nereus, Apophis and to 1999 JU3, the target of Hayabusa 2. the mission would launch in 2017 and reach 1999 JU3 in 2020. the mass of the spacecraft (1000 kg) would make it "launcheable" by a Long March 3A-class launcher
Target analysis and low-thrust trajectory design of Chinese asteroid exploration mission