| Naics index | Naics index description |
|---|---|
| 325180 | Magnesium chloride manufacturing |
| 325180 | Magnesium compounds, not specified elsewhere by process, manufacturing |
| 325180 | Manganese dioxide manufacturing |
| 325180 | Mercury chloride manufacturing |
| 325180 | Mercury compounds, not specified elsewhere by process, manufacturing |
| 325180 | Mercury oxide manufacturing |
| 325180 | Nickel ammonium sulfate manufacturing |
| 325180 | Nickel carbonate manufacturing |
| 325180 | Nickel compounds, not specified elsewhere by process, manufacturing |
| 325180 | Nickel sulfate manufacturing |