WCO Explanatory Notes reproduced for reference. © World Customs Organization. Verify against official WCO publication.
25.17 - 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. 2517.10 - Pebbles, gravel, broken or crushed stone, of a kind commonly used for egates, for road metalling or for railway or other ballast, 8int, whether or not heat-treated shmgle an 2517.20 - Macadam of slag, dross or similar industrial waste, whether or not incorporating the materials cited in subheading 25 17.10 2517.30 - Tarredmacadam - Granules, chip ings and powder, of stones of heading 25.15 or 25.16, g whether or not eat-treated : 25 17.41 25 17.49 - - Of marble - - Other This headin covers pebbles, gravel and broken or crushed stone (including mixtures of different kin s of stone), of a kind commonly used for concrete aggregates, for road metalling or for railway track or other ballast. Segregated materials of construction and demolition waste consistin essentially of broken pieces of stone which are used for the same purposes, either as such or a er crushing, also fall in this heading. ! Bt The heading also includes shingle and flint. Round modules of flint are used in ball mills for crushing lime, cement, etc. Flint is, however, mainly used, after crushing, in the ceramic industry or as an abrasive material. Other shingle is used in ball mills (e.g., for grinding lime, cement, etc.) or for road metalling. It should be noted that the heading does not cover flint in cut blocks, or stones which have been manufactured by artificial rounding into pebbles for use in balI mills. These fall in heading 68.02. The heading also covers macadam and tarred macadam. Macadam is composed of roughly aded crushed stones, pebbles, slag, dross or similar industrial waste, or intermixtures of ese materials. When mixed with tar, bitumen, etc., it is known as tarred macadam. tf: Products specially prepared (e.g., by fusion of a mixture of minerals) e.g., for addition to road surfacing materials, to improve hardness, anti-skid properties, visibility, etc., are excluded from this heading (generally heading 38.24). The heading also includes granules, chippings and powder of stones of heading 25.15 or 25.16; when artificial1 coloured (e.g., for shop window displays), such chippings and granules are, however, classi led in heading 68.02. f The following products remain classified in this heading even when they have been heat treated : (1) Pebbles, gravel and broken ox crushed stone. (2) Shingle and flint. (3) Granules, chippings and powder of stones of heading 25.15 or 25.16. In accordance with Note 3 to this Chapter, any products classifiable in this heading and any other heading of the Chapter are to be classified in this heading. -
1.- Except where their context or Note 4 to this Chapter otherwise requires, the headings of this Chapter cover only products which are in the crude state or which have been washed (even with chemical substances eliminating the impurities without changing the structure of the product), crushed, ground, powdered, levigated, sifted, screened, concentrated by flotation, magnetic separation or other mechanical or physical processes (except crystallisation), but not products which have been roasted, calcined, obtained by mixing or subjected to processing beyond that mentioned in each heading. The products of this Chapter may contain an added anti-dusting agent, provided that such addition does not render the product particularly suitable for specific use rather than for general use. 2.- This Chapter does not cover : (a) Sublimed sulphur, precipitated sulphur or colloidal sulphur (heading 28.02); (b) Earth colours containing 70 % or more by weight of combined iron evaluated as Fe O 2 3 (heading 28.21); (c) Medicaments or other products of Chapter 30; (d) Perfumery, cosmetic or toilet preparations (Chapter 33); (e) Dolomite ramming mix (heading 38.16); (f) Setts, curbstones or flagstones (heading 68.01); mosaic cubes or the like (heading 68.02); roofing, facing or damp course slates (heading 68.03); (g) Precious or semi-precious stones (heading 71.02 or 71.03); (h) Cultured crystals (other than optical elements) weighing not less than 2.5 g each, of sodium chloride or of magnesium oxide, of heading 38.24; optical elements of sodium chloride or of magnesium oxide (heading 90.01); (ij) Billiard chalks (heading 95.04); or (k) Writing or drawing chalks or tailors' chalks (heading 96.09). 3.- Any products classifiable in heading 25.17 and any other heading of the Chapter are to be classified in heading 25.17. 4.- Heading 25.30 applies, inter alia, to : vermiculite, perlite and chlorites, unexpanded; earth colours, whether or not calcined or mixed together; natural micaceous iron oxides; meerschaum (whether or not in polished pieces); amber; agglomerated meerschaum and agglomerated amber, in plates, rods, sticks or similar forms, not worked after moulding; jet; strontianite (whether or not calcined), other than strontium oxide; broken pieces of pottery, brick or concrete.