79 coal mines in production or under construction including 54 nationally recognized safe and efficient mines.24 mines are with over 10-million-ton annual capacity, including the world's first 200-million-ton coal mine cluster (shendong mining area) and the world's largest single-well coal mine (bulianta mine).top performer in china's coal industry in terms of technological sophistication and global competitiveness, with 100% mechanization across all mine.
