Any idea what this is about? Gang war? Collecting fire insurance? Terrorists? I have yet to see any serious attempts to figure it out.
Under the Chinese Communists safety and professionalism can often take a second place to self interest. So industrial accidents can occur more frequently than in other industrial nations, eg Japan or US.
Yet, the frequency of these explosions does make me wonder if it is not true that these events may be part of internecine conflict within the Communist Party.
China is a thuggocracy. And Xi Jinping is a foremost thug, even by Chinese political standards.
I have seen all those things mentioned. Being China you think the Government would be on top of this.
NK getting even for the massive rail yard explosions (just missing the departed Kim) near their mutual border a few years back, perhaps?