| 212390 |
Pipestones mining and/or beneficiating |
| 212390 |
Potash mining and/or beneficiating |
| 212390 |
Potassium bromide, natural, mining and/or beneficiating |
| 212390 |
Potassium chloride mining and/or beneficiating |
| 212390 |
Potassium compounds prepared at beneficiating plants |
| 212390 |
Potassium compounds, natural, mining and/or beneficiating |
| 212390 |
Potassium salts, natural, mining and/or beneficiating |
| 212390 |
Pozzolana mining and/or beneficiating |
| 212390 |
Precious stones mining and/or beneficiating |
| 212390 |
Probertite mining and/or quarrying |