| 2403.99.30 | 70 | Other | kg | | | |
| 2403.99.60 | | Described in additional U.S. note 5 to this chapter and entered pursuant to its provisions | | 24.7￠/kg | Free (A+,BH,CL,D, E,J,MA,P,SG) | $1.21/kg |
| 2403.99.60 | 70 | Other | kg | | | |
| 2403.99.90 | | Other | | 350% | Free (CA,IL,MX) 280% (P) See 9910.24.05 9910.24.10 (SG) See 9911.24.05, 9911.24.10 (CL) See 9912.24.05 9912.24.10 (MA) See 9913.24.05 9913.24.10 (AU) See 9914.24.05 9914.24.10 (BH) | 350% |
| 2403.99.90 | 70 | Other | kg | | | |
| 2501.00.00 | 00 | Salt (including table salt and denatured salt) and pure sodium chloride, whether or not in aqueous solution or containing added anticaking or free-flowing agents; sea water | t | Free | | 26% |
| 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 | 50 | Other | t | | | |
| 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￠/kg |
