| 2529.21.00 | 00 | Containing by weight 97 percent or less of calcium fluoride | t | Free | | 13.5% |
| 2529.22.00 | 00 | Containing by weight more than 97 percent of calcium fluoride | t | Free | | $5.51/t |
| 2529.30.00 | | Leucite; nepheline and nepheline syenite | | Free | | Free |
| 2529.30.00 | 10 | Nepheline syenite | t | | | |
| 2530.20.10 | 00 | Kieserite | kg | Free | | Free |
| 2530.90.10 | 00 | Natural cryolite; natural chiolite | t | Free | | Free |
| 2530.90.80 | 10 | Celestite | kg | | | |
| 2601.11.00 | 60 | Coarse | t | | | |
| 2602.00.00 | | Manganese ores and concentrates, including ferruginous manganese ores and concentrates with a manganese con- tent of 20 percent or more, calculated on the dry weight | | Free | | 2.2￠/kg on manganese content |
| 2602.00.00 | 40 | Containing less than 47 percent by weight of manganese | kg Mn kg | | | |
| 2602.00.00 | 60 | Containing 47 percent or more by weight of manganese | kg Mn kg | | | |
| 2603.00.00 | 10 | Copper content | Cu kg | | | |
| 2603.00.00 | 20 | Lead content | Pb kg | | | |
| 2603.00.00 | 30 | Zinc content | Zn kg | | | |
| 2603.00.00 | 40 | Silver content | Ag g | | | |
| 2603.00.00 | 50 | Gold content | Au g | | | |
| 2604.00.00 | 40 | Nickel content | Ni kg | | | |
| 2604.00.00 | 80 | Other metal content | kg | | | |
| 2606.00.00 | 30 | Refractory grade | t | | | |
| 2607.00.00 | 10 | Copper content | Cu kg | | | |
| 2607.00.00 | 20 | Lead content | Pb kg | | | |
| 2607.00.00 | 30 | Zinc content | Zn kg | | | |
| 2607.00.00 | 40 | Silver content | Ag g | | | |
| 2607.00.00 | 50 | Gold content | Au g | | | |
| 2608.00.00 | 10 | Copper content | Cu kg | | | |
