CNSA or China National Space Administration is planning to send probes on three asteroids. Aim is to study their structure, characteristics and evolution in order to understand the origins of the solar system and life on Planet earth. It will also study their flight path to calculate the probability of their colliding with the planet.
Till date only USA and Japan has landed probe on asteroids.
Japanese probe Hayabusa 1 landed on the asteroid Itokawa, and bringing back samples for analysis.