| 2512.00.00 | 00 | Siliceous fossil meals (for example, kieselguhr, tripolite and diatomite) and similar siliceous earths, whether or not calcined, of an apparent specific gravity of 1 or less | t | Free | | Free |
| 2513 | | Pumice; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat-treated: | | | | |
| 2514.00.00 | 00 | Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | t | Free | | 25% |
| 2515 | | Marble, travertine and other calcareous monumental or building stone of an apparent specific gravity of 2.5 or more, and alabaster, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | | | | |
| 2516 | | Granite, porphyry, basalt, sandstone and other monumental or building stone, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape: | | | | |
| 2517 | | Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling, or for railway or other ballast; shingle and flint, whether or not heat-treated; macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in the first part of the heading; tarred macadam; granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated: | | | | |
| 2517.10.00 | | Pebbles, gravel, broken or crushed stone, of a kind commonly used for concrete aggregates, for road metalling, or for railway or other ballast, shingle and flint, whether or not heat-treated | | Free | | 30% |
| 2517.20.00 | 00 | Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 2517.10 | t | Free | | 30% |
| 2517.41.00 | 00 | Granules, chippings and powder, of stones of heading 2515 or 2516, whether or not heat-treated: | | | | |
| 2518 | | Dolomite whether or not calcined or sintered, including dolomite roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; dolomite ramming mix: | | | | |
| 2519 | | Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; other magnesium oxide, whether or not pure: | | | | |
| 2520 | | Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders: | | | | |
| 2523 | | Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: | | | | |
| 2523.21.00 | 00 | White cement, whether or not artificially colored | t | Free | | $1.76/t, including weight of container |
| 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: | | | | |
| 2528.10.00 | 00 | Natural sodium borates and concentrates thereof (whether or not calcined) | kg | Free | | Free |
| 2530 | | Mineral substances not elsewhere specified or included: | | | | |
| 2620.99.30 | 00 | Materials not provided for elsewhere in this heading containing by weight over 10 percent nickel | kg Ni kg | Free | | Free |
| 2620.99.50 | 00 | Slag containing by weight over 40 percent titanium, and which if containing over 2 percent by weight of copper, lead, or zinc is not to be treated for the recovery thereof | kg | Free | | Free |
| 2620.99.75 | | Other materials which are residues not advanced in value or condition by any means, and which if containing over 2 percent by weight of copper, lead or zinc are not to be treated for the recovery thereof | | Free | | Free |
| 2701.11.00 | 00 | Coal, whether or not pulverized, but not agglomerated: | | | | |
| 2702 | | Lignite, whether or not agglomerated, excluding jet: | | | | |
| 2702.10.00 | 00 | Lignite, whether or not pulverized, but not agglomerated | t | Free | | Free |
| 2703.00.00 | 00 | Peat (including peat litter), whether or not agglomerated | t | Free | | Free |
| 2704.00.00 | | Coke and semicoke of coal, of lignite or of peat, whether or not agglomerated; retort carbon | | Free | | Free |
