2528 00 000 0 — Natural borates and concentrates thereof (whether or not calcined), but not including borates separated from natural brine; natural boric acid containing not more than 85 % by weight of H3BO3 calculated on the dry weight

2528 Natural borates and their concentrates (calcified or non-calcified), except borates isolated from natural tins; natural boric acid, containing not more than 85 wt % H 3BO3 in terms of dry product

This heading covers only natural boron-containing minerals as they are extracted from the subsoil, concentrates (calcified or uncalcified) of such minerals and natural boric acid as obtained by evaporating water left over after the condensation of natural minerals coming from the ground in certain areas (Italian soffioni), or by evaporating water from underground pipes in those areas. However, this heading does not include boric acid containing more than 85 % by weight of H3BO3 in terms of dry produce (heading 2810). Natural borates included here include: (1) Kernit or tincal, sodium borates, also known as "natural borax." (2) Pandermite and preceit, calcium borates. (3) Boracite, magnesium chloroborate. This heading does not include sodium borate (purified borax), floor scientist by chemical treatment of kernite or tincal, and sodium borates obtained by evaporation of complex brines from certain salt lakes (heading 2840).

Notes

Machine translation. The original is the Russian text of the EAEU tariff, and customs goes by it; this translation is for understanding only and has no legal force.

1. Unless otherwise specified in the context of or in note 4 to this chapter, this chapter includes only products raw or washed (including with chemicals that remove impurities without changing the structure of the product), crushed, ground, powdered, sifted, enriched by flotation, magnetic separation or other mechanical or physical processes (except crystallization). Products which have been roasted, calcined, mixed or processed by methods not specified in each heading are not included in this chapter.

Products of this group may contain additives of dust suppressant, provided that this does not alter the properties of the product, making it suitable for specific rather than conventional use.

2. This group does not include:

(a) freeze-dried, precipitated or colloidal sulfur (heading 2802);

(b) mineral dyes containing 70 % or more by weight of chemically bound iron in terms of Fe2O3 (heading 2821);

(c) medicinal products or other products of Chapter 30;

(d) perfumes, cosmetics or toiletries (Chapter 33);

(e) dolomite padding mixture (heading 3816);

(f) paving stones, curbstones or paving boards (heading 6801); mosaic cubes or similar articles (heading 6802); slate for roofing, cladding or waterproofing (heading 6803);

(g) precious or semi-precious stones (heading 7102 or 7103);

(h) crystals of sodium chloride or magnesium oxide, artificially grown (other than optical elements), each weighing not less than 2.5 g (heading 3824); optical elements of sodium chloride or magnesium oxide (heading 9001);

(ij) billiard crayons (heading 9504); or

(k) pencils for writing or drawing, pencils for tailors (heading 9609).

3. Any products which may be classified either in heading 2517 or in any other heading of this Chapter shall be classified in heading 2517.

4. Heading 2530 covers, inter alia: vermiculite, perlite and chlorites, unfoamed; natural pigments, whether or not calcified, mixed or unmixed; natural mica oxide of iron; sepiolite (in polished or unpolished pieces); amber; sepiolite agglomerated and amber agglomerated, in plates, rods, sticks, or similar forms, not processed after casting; gagatron (black yanthronate), or with brontrontrontone; or with ambertrontrontone.