The blast has been traced back to errant sparks in a wheel-hub polishing workshop that apparently ignited dust. There were a total of 264 people working at the plant at the time of the explosion.
General Motors confirmed in an email to Bloomberg that the auto parts plant was an indirect supplier that produces parts, mostly plated and polished metal items, for a company called Dicastal, which is a direct supplier to the American automaker. Reports also indicate Volkswagen is a customer.
This blast is reportedly the worst industrial accident China has seen so far this year, and it again brings up issues of worker safety in the country. According to the official Xinhua News Agency, cited by Bloomberg, there have been 19 serious safety incidents recorded so far in China in 2014, with the death toll cresting 200.