The strike ended up being dispursed by police and a riot squad.
The rioters protested the work conditions and the amount of overtime (up to 200 hours), amongst other things. The company now has agreed to cut mandatory overtime hours and allow workers to come into work on Saturdays, which by Chinese law are mandatory overtime days.
China's labor movement still has a long way to go to reach equality with western work standards, but I am glad to see the positive outcome of this strike.
Way to go my Chinese brothers and sisters. From one union brother to another! In solidarity!
Source: The Verge