| 2502.00.00 | 00 | Unroasted iron pyrites | t | Free | | Free |
| 2503.00.00 | | Sulfur of all kinds, other than sublimed sulfur, precipitated sulfur and colloidal sulfur | | Free | | Free |
| 2503.00.00 | 10 | Crude or unrefined sulfur | t | | | |
| 2503.00.00 | 90 | Other | t | | | |
| 2504.10.50 | 00 | Other | kg | Free | | 10% |
| 2504.90.00 | 00 | Other | kg | Free | | 10% |
| 2505.10.50 | 00 | Other | t | Free | | Free |
| 2505.90.00 | 00 | Other | t | Free | | Free |
| 2506.10.00 | 50 | Other | t | | | |
| 2506.20.00 | 80 | Other | t | | | |
| 2508.40.01 | | Other clays | | Free | | $1.97/t |
| 2508.40.01 | 10 | Common blue clay and other ball clays | t | | | |
| 2508.40.01 | 20 | Decolorizing earths and fuller's earth | t | | | |
| 2508.40.01 | 50 | Other | t | | | |
| 2508.70.00 | 00 | Chamotte or dinas earth | t | Free | | Free |
| 2509.00.20 | 00 | Other | t | Free | | 13% |
| 2511.10.50 | 00 | Other | t | $1.25/t | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | $3.94/t |
| 2512.00.00 | 00 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less | t | Free | | Free |
| 2513.10.00 | 80 | Other | kg | | | |
| 2513.20.10 | 00 | Crude or in irregular pieces | kg | Free | | Free |
| 2513.20.90 | 00 | Other | kg | Free | | 2.2¡é/kg |
| 2515.20.00 | 00 | Other calcareous monumental or building stone; alabaster | t | 3% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 50% |
| 2516.12.00 | 60 | Other | t | | | |
| 2516.90.00 | 60 | Other | t | | | |
| 2517.10.00 | 55 | Other | t | | | |
