| 2523.30 | 000 | Aluminous cement | 
| 2523.90 | 000 | Other hydraulic cements | 
| 2524.10 | 000 | Crocidolite | 
| 25.25 |  | Mica, including splittings; mica waste | 
| 2525.10 | 000 | Crude mica and mica rifted into sheets or splittings | 
| 2525.20 | 000 | Mica powder | 
| 2525.30 | 000 | Mica waste | 
| 25.26 |  | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc | 
| 2526.10 | 000 | Not crushed, not powdered | 
| 2526.20 | 000 | Crushed or powdered | 
| 2528.00 | 000 | Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85% of H3BO3 calculated on the dry weight | 
| 25.29 |  | Feldspar; leucite; nepheline and nepheline syenite; fluorspar | 
| 2529.21 | 000 | Containing by weight 97% or less of calcium fluoride | 
| 2529.22 | 000 | Containing by weight more than 97% of calcium fluoride | 
| 2529.30 | 000 | Leucite; nepheline and nepheline syenite | 
| 25.30 |  | Mineral substances not elsewhere specified or included | 
| 2530.10 | 000 | Vermiculite, perlite and chlorites, unexpanded | 
| 26.01 |  | Iron ores and concentrates, including roasted iron pyrites: | 
| 26.01 |  | Iron ores and concentrates, other than roasted iron pyrites | 
| 2602.00 |  | Manganese ores and concentrates, including ferruginous manganese ores and concentrates with a manganese content of 20% or more, calculated on the dry weight | 
| 2602.00 |  | - Manganese ores and concentrates | 
| 2602.00 | 010 | -- Containing more than 39% of manganese calculated on the dry weight | 
| 2602.00 | 090 | - Ferruginous manganese ores and concentrates |