| 2523.30.00 | 00 | Aluminous cement | t | Free | | $1.32/t, including weight of container |
| 2523.90.00 | 00 | Other hydraulic cements | t | Free | | $1.32/t, including weight of container |
| 2524.90.00 | | Other | | Free | | Free |
| 2524.90.00 | 10 | Amosite | t | | | |
| 2524.90.00 | 30 | Crudes | t | | | |
| 2524.90.00 | 45 | Milled fibers, group 4 and 5 grades | t | | | |
| 2524.90.00 | 55 | Other | t | | | |
| 2524.90.00 | 60 | Other | t | | | |
| 2525.10.00 | | Crude mica and mica rifted into sheets or splittings | | Free | | Free |
| 2525.10.00 | 20 | Mica splittings | kg | | | |
| 2525.10.00 | 50 | Other | kg | | | |
| 2525.20.00 | 00 | Mica powder | kg | Free | | 20% |
| 2525.30.00 | 00 | Mica waste | kg | Free | | 8.8￠/kg |
| 2528.90.00 | | Other | | Free | | Free |
| 2528.90.00 | 10 | Natural calcium borates | kg | | | |
| 2528.90.00 | 50 | Other | kg | | | |
| 2529.10.00 | 00 | Feldspar | t | Free | | 49￠/t |
| 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 | | | |
| 2529.30.00 | 50 | Other | t | | | |
| 2530.20.10 | 00 | Kieserite | kg | Free | | Free |
| 2530.20.20 | 00 | Epsom salts | kg | Free | | 20% |
| 2530.90.10 | 00 | Natural cryolite; natural chiolite | t | Free | | Free |
