| Naics index | Naics index description |
|---|---|
| 212290 | Mercury (quicksilver) mining and/or beneficiating |
| 212290 | Mercury ores mining and/or beneficiating |
| 212290 | Microlite mining and/or beneficiating |
| 212290 | Molybdenite mining and/or beneficiating |
| 212290 | Molybdenum ores mining and/or beneficiating |
| 212290 | Molybdite mining and/or beneficiating |
| 212290 | Monazite mining and/or beneficiating |
| 212290 | Osmium mining and/or beneficiating |
| 212290 | Palladium mining and/or beneficiating |
| 212290 | Pitchblende mining and/or beneficiating |