This is an exercise that Su was doing in training just days before he lifted at the 2009 Worlds, the weight is 210kg. He is using a snatch grip.
At the recent Asian championships Sept 2015 Su made just one snatch with 150kg. He clearly won’t be in Houston. I will stifle my comments as to the utility of doing this type of exercise loading at anytime, let alone just days before you lift.