2508.50.00 | 00 | Andalusite, kyanite and sillimanite | t | Free | | Free |
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 |
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: | | | | |
2515.11.00 | 00 | Crude or roughly trimmed | m3 t | Free | | $22.95/m3 |
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: | | | | |
2516.11.00 | 00 | Crude or roughly trimmed | m3 t | Free | | $8.83/m3 |
2516.20.10 | 00 | Crude or roughly trimmed | m3 t | Free | | $5.30/m3 |
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 | 20 | Limestone, except pebbles and gravel | t | | | |
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% |
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: | | | | |
2521.00.00 | 00 | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement | t | Free | | Free |
2522 | | Quicklime, slaked lime and hydraulic lime, other than calcium oxide and hydroxide of heading 2825: | | | | |
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 |
2523 | | Portland cement, aluminous cement, slag cement, supersulfate cement and similar hydraulic cements, whether or not colored or in the form of clinkers: | | | | |
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: | | | | |
2617.10.00 | 00 | Antimony ores and concentrates | kg Sb kg | Free | | Free |
2620.19.30 | 00 | Zinc dross and zinc skimmings | kg Zn kg | Free | | 3.3¢/kg |
2620.91.00 | 00 | Containing antimony, beryllium, cadmium, chromium or their mixtures | kg | Free | | 30% |
2701 | | Coal; briquettes, ovoids and similar solid fuels manufactured from coal: | | | | |
2701.20.00 | 00 | Briquettes, ovoids and similar solid fuels manufactured from coal | t | Free | | Free |
2704.00.00 | 11 | Coke larger than 100 mm (4 inches) in maximum diameter and at least 50 percent of which is retained on a 100-mm (4-inch) sieve after drop shatter testing pursuant to ASTM D 3038, of a kind used in foundries | t | | | |