The accidents on ore autoignition in Tongshan Copper Mine of Tongling Nonferrous Metals Group Corp occurred many times in the 1990s.

• 上世纪90年代铜陵有色金属公司铜山矿多次发生采场内矿石自燃事故,给矿山安全生产带来一系列问题,并造成巨大经济损失。