| 2524.90.00 | 10 | Amosite | t |  |  |  | 
| 2525 |  | Mica, including splittings; mica waste: |  |  |  |  | 
| 2525.10.00 |  | Crude mica and mica rifted into sheets or splittings |  | Free |  | Free | 
| 2525.30.00 | 00 | Mica waste | kg | Free |  | 8.8¢/kg | 
| 2526 |  | Natural steatite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rect- angular (including square) shape;talc: |  |  |  |  | 
| 2528 |  | Natural borates and concentrates thereof (calcined or not), but not including borates separated from natural brine; natural boric acid containing not more than 85 percent of H3BO3 calculated on the dry weight: |  |  |  |  | 
| 2528.10.00 | 00 | Natural sodium borates and concentrates thereof (whether or not calcined) | kg | Free |  | Free | 
| 2528.90.00 | 10 | Natural calcium borates | kg |  |  |  | 
| 2529 |  | Feldspar; leucite, nepheline and nepheline syenite; fluorspar: |  |  |  |  | 
| 2529.30.00 |  | Leucite; nepheline and nepheline syenite |  | Free |  | Free | 
| 2529.30.00 | 10 | Nepheline syenite | t |  |  |  | 
| 2530.10.00 | 00 | Vermiculite, perlite and chlorites, unexpanded | kg | Free |  | Free | 
| 2530.20 |  | Kieserite, epsom salts (natural magnesium sulfates): |  |  |  |  | 
| 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 |  | Iron ores and concentrates, including roasted iron pyrites: |  |  |  |  | 
| 2601.11.00 |  | Iron ores and concentrates, other than roasted iron pyrites: |  |  |  |  | 
| 2601.11.00 |  | Non-agglomerated |  | Free |  | Free | 
| 2601.11.00 | 30 | Concentrates | t |  |  |  | 
| 2601.12.00 |  | Agglomerated |  | Free |  | Free | 
| 2601.12.00 | 60 | Briquettes | t |  |  |  | 
| 2601.20.00 | 00 | Roasted iron pyrites | t | Free |  | Free | 
| 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 | 
| 2603.00.00 |  | Copper ores and concentrates |  | 1.7¢/kg on lead   content | Free (A,AU,BH, CA,CL,E,IL, J,JO, MA,MX, P,SG) | 8.8¢/kg on copper content +  3.3¢/kg on lead content +  3.7¢/kg on zinc content |