Chapter 25

Salt and Pure Sodium Chloride

HS code 2501 covers salt (standard and denatured), pure sodium chloride, and sea water, whether or not in aqueous solution or with added anti-caking agents.

Unroasted Iron Pyrites

HS code 2502 is for unroasted iron pyrites, used mainly for sulphur extraction and chemical production, excluding roasted pyrites used for iron ore.

Sulphur of All Kinds (Excl. Sublimed)

HS code 2503 covers natural and recovered sulphur of all kinds, excluding sublimed, precipitated, and colloidal sulphur, used largely in fertilisers.

Natural Graphite

HS code 2504 covers natural graphite in crystalline, flake, or amorphous forms, widely used in battery manufacturing and industrial lubricants.

Natural Sands (Industrial and Construction)

HS code 2505 is used for natural sands of all kinds, including silica and quartz sands for industrial use, but excludes metal-bearing sands of Chapter 26.

Quartz and Quartzite

HS code 2506 is for natural quartz and quartzite, whether or not roughly trimmed or sawed into blocks, excluding natural silica sands.

Kaolin and Other Kaolinic Clays

HS code 2507 covers kaolin and other kaolinic clays, including calcined forms, primarily used in the paper, ceramic, and pharmaceutical industries.

Industrial Clays and Related Minerals

HS code 2508 covers industrial clays including bentonite, fire-clay, and andalusite, but excludes expanded clays used in insulation.

Chalk (Natural)

HS code 2509 covers natural chalk as a raw mineral, excluding medicinal chalk and dental preparations of calcium carbonate.

Natural Calcium Phosphates

HS code 2510 covers natural calcium phosphates and phosphatic chalk, the essential raw materials for global phosphate fertiliser production.

Natural Barium Sulphate and Carbonate

HS code 2511 covers natural barium sulphate (barytes) and natural barium carbonate (witherite), used heavily in drilling muds and chemical manufacturing.

Siliceous Fossil Meals and Diatomaceous Earth

HS code 2512 covers siliceous fossil meals like diatomite and kieselguhr with a specific gravity of 1 or less, used for industrial filtration and absorption.

Pumice Stone and Natural Abrasives

HS code 2513 is used for pumice stone, emery, natural garnet, and other natural abrasives, whether or not heat-treated, for industrial polishing and grinding.

Natural Slate Blocks and Slabs

HS code 2514 covers natural slate in the form of crude blocks or slabs, whether or not merely cut by sawing or otherwise into rectangular shapes.

Marble, Travertine and Alabaster Stone

HS code 2515 covers marble, travertine, ecaussine, and alabaster of a specific gravity ≥ 2.5, in crude blocks or slabs cut by sawing.

Granite, Porphyry and Basalt Stone

HS code 2516 covers granite, porphyry, basalt, and sandstone in crude, roughly trimmed, or merely saw-cut blocks and slabs for monumental use.

Pebbles, Gravel and Crushed Stone

HS code 2517 covers pebbles, gravel, and crushed stone used for aggregates, road ballast, or railway ballast, including tarred macadam.

Dolomite and Calcined Dolomite

HS code 2518 covers raw, calcined, or sintered dolomite, including blocks or slabs cut into rectangular shapes for industrial use.

Magnesite and Magnesium Oxides

HS code 2519 covers natural magnesium carbonate (magnesite), fused magnesia, dead-burned magnesia, and pure magnesium oxide for industrial use.

Gypsum, Anhydrite and Plasters

HS code 2520 covers natural gypsum and anhydrite, as well as plasters consisting of calcined gypsum or calcium sulphate, whether or not coloured.

Limestone Flux and Calcareous Stone

HS code 2521 is for limestone flux and calcareous stone used for the manufacture of lime or cement, excluding building stone of 2515.

Quicklime, Slaked Lime and Hydraulic Lime

HS code 2522 covers quicklime, slaked lime, and hydraulic lime used for industrial and construction purposes, excluding pure chemical calcium oxide of heading 2

Portland Cement and Other Hydraulic Cements

HS code 2523 covers hydraulic cements including Portland cement, aluminous cement, and cement clinkers used globally as the primary binder in concrete.

Asbestos and Raw Asbestos Fibres

HS code 2524 covers raw asbestos mineral and fibres, including varieties like chrysotile and amosite, used for industrial fireproofing and thermal insulation.

Mica and Mica Waste

HS code 2525 covers natural mica in blocks, sheets, or powder, including mica splittings and waste, primarily used for electrical insulation and cosmetic pigmen

Talc and Natural Steatite

HS code 2526 is for natural steatite and talc, whether crushed, powdered, or in blocks, widely used as industrial fillers, lubricants, and cosmetic additives.

Natural Borates and Concentrates

HS code 2528 covers natural borates and their concentrates, including natural boric acid, used in the production of fertilisers, glass, and household detergents

Feldspar, Leucite, and Fluorspar

HS code 2529 encompasses feldspar, leucite, nepheline, and fluorspar, essential mineral fluxes used in glassmaking, ceramics, and metallurgical processing.

Miscellaneous Mineral Substances

HS code 2530 is a residual category for mineral substances not elsewhere specified, including vermiculite, perlite, and natural arsenic sulphides.