| 2517.41.00 | 00 | Of marble | t | Free | | 30% |
| 2518.20.00 | 00 | Calcined or sintered dolomite | t | 3% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 30% |
| 2519.90.10 | 00 | Fused magnesia and dead-burned (sintered) magnesia | kg | Free | | 1.7¢/kg |
| 2519.90.20 | 00 | Caustic calcined magnesite | t | Free | | $20.70/t |
| 2520.10.00 | 00 | Gypsum; anhydrite | t | Free | | Free |
| 2522.10.00 | 00 | Quicklime | kg | Free | | 0.2¢/kg, including weight of container |
| 2522.20.00 | 00 | Slaked lime | kg | Free | | 0.3¢/kg, including weight of container |
| 2522.30.00 | 00 | Hydraulic lime | kg | Free | | 0.2¢/kg, including weight of container |
| 2524.90.00 | 10 | Amosite | t | | | |
| 2525.10.00 | 10 | Split block mica | kg | | | |
| 2525.30.00 | 00 | Mica waste | kg | Free | | 8.8¢/kg |
| 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 | 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 | | | |
| 2606.00.00 | 30 | Refractory grade | t | | | |
| 2614.00.30 | 00 | Synthetic rutile | kg | Free | | 30% |
| 2619.00.30 | 00 | Ferrous scale | t | Free | | 73.8¢/t |
| 2620.40.00 | | Containing mainly aluminum | | Free | | Free |