| 2515.20.00 | 10 | Marble, travertine, ecaussine 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. - Limestone | TNE | | |
| 2521.00.00 | | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. | TNE | Free | CCCT, LDCT |
| 2521.00.00 | 40 | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. - Limestone | TNE | | |
| 2521.00.00 | 90 | Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement. - Other | TNE | | |
| 2517.10.00 | 30 | 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 25.15 or 25.16, whether or not heat-treated.
- Limestone, other than of heading 25.21 | TNE | | |
| 2517.49.00 | 10 | Granules, chippings and powder, of stones of heading 25.15 or 25.16, whether or not heat-treated: - 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 25.15 or 25.16, whether or not heat-treated.
- Limestone; Roofing granules | TNE | | |
Harmonized Tariff Schedule of the Canada inquiry: aircraft+parts
