| 213113 |
Bituminous or lignite auger mining service on a contract basis |
| 213113 |
Blasting services, coal mining, on a contract basis |
| 213113 |
Coal mining services on a contract basis (except geophysical surveying and mapping, site preparation, construction, and transportation activities) |
| 213113 |
Coal mining support services on a contract basis (e.g., tunneling, blasting, training, overburden removal) (except geophysical surveying and mapping, site preparation, construction, and transportation activities) |
| 213113 |
Culm bank recovery, anthracite, on a contract basis |
| 213113 |
Culm bank recovery, coal, on a contract basis |
| 213113 |
Draining or pumping coal mines on a contract basis |
| 213113 |
Drilling services for coal mining on a contract basis |
| 213113 |
Exploration services for coal (except geophysical surveying and mapping) on a contract basis |
| 213113 |
Lignite mining services on a contract basis (except geophysical surveying and mapping, site preparation, construction, and transportation activities) |