Hu Haijun is the highest-ranking official caught up in a widening accountability probe following a May explosion that killed 82 people

Hu Haijun is the highest-ranking official caught up in a widening accountability probe following a May explosion that killed 82 people

China's top mine-safety official in a major coal region is under investigation for corruption. Hu Haijun, director of the Shanxi Bureau of the National Mine Safety Administration,…