| 2516.20.10 | 00 | Crude or roughly trimmed | m3 t | Free | | $5.30/m3 |
| 2516.20.20 | 00 | Merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape | t | 3% | Free (A,AU,BH,CA, CL,E,IL,J,JO,MA, MX,P,SG) | 50% |
| 2516.90.00 | 30 | Having a thickness of 7.5 cm or more | t | | | |
| 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% |
| 2517.10.00 | 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% |
| 2517.30.00 | 00 | Tarred macadam | 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: | | | | |
| 2518.10.00 | 00 | Dolomite, not calcined or sintered | t | Free | | Free |
| 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 | | 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: | | | | |
| 2519.10.00 | 00 | Natural magnesium carbonate (magnesite) | t | Free | | $10.33/t |
| 2519.90.20 | 00 | Caustic calcined magnesite | t | Free | | $20.70/t |
| 2520 | | Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulfate) whether or not colored, with or without small quantities of accelerators or retarders: | | | | |
| 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 |
| 2522.30.00 | 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: | | | | |
| 2523.10.00 | 00 | Cement clinkers | t | Free | | $1.32/t, including weight of container |
| 2523.21.00 | 00 | Portland cement: | | | | |
| 2523.21.00 | 00 | White cement, whether or not artificially colored | t | Free | | $1.76/t, including weight of container |
| 2523.30.00 | 00 | Aluminous cement | t | Free | | $1.32/t, including weight of container |
Harmonized Tariff Schedule of the United States inquiry: 3203Ã
