2005 blast in the Sunjiawan mine, Liaoning province, was one of the deadliest. 214 Chinese miners died several hundred meters under the ground after a gas blast, the deadliest accident in 15 years. The mine operation was subcontracted to diﬀerent mining teams. According to the CLB, which is in contact with local miners, contractors paid ﬁxed sums to work sections of the mine, using people they hired themselves.
The February 2009 explosion in the Tunlan mine, Shanxi province killed 73 miners. 400 men were at work at the time. Most of them could escape the collapse, but 110 miners were treated in hospital. Fire in the shafts blocked rescuers, and more than 60 people were still trapped days after the accident. Most of the saved miners suﬀered carbon monoxide poisoning.