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Story summary
- Ningwu Chaokai Coal Industry began dumping slag into the Great Wall’s Guojiayao section in 2007.
- The trench cut through the wall enabled cheap waste disposal while bypassing mountain roads.
- Shenda Chaokai Coal Industry formed in 2013 continued using the breach for slag dumping.
- Whistle-blowers repeatedly warned officials about the damage.
- Dumping persisted for nearly 20 years.
