C221

He had been making jade ores for a long time, and most of the time he had been working on high mountain jade. He had never heard of a stone mine opening on a cold plateau, and after all, this was not a coal mine, so it was impossible for the mine to contain a flammable gas like methane.

Then, Xu Shanhu blurted out a question: "Is the situation true?"

Old Liu nodded his head and said