Kaolin and other kaolinic clays; whether or not calcined

HS v2017 Code: 2507

About kaolin and other kaolinic clays; whether or not calcined

HS code 2507 covers kaolin and other kaolinic clays, which are essential raw materials in a wide range of industries. Kaolin is a fine, white clay mineral that is highly valued for its unique physical and chemical properties, making it a crucial ingredient in the production of ceramics, paper, paints, plastics, and many other products. The global kaolin market is sizeable, with significant demand driven by the growing construction, manufacturing, and consumer goods sectors worldwide.

Production process

Kaolin is primarily extracted from natural deposits through mining operations. The extracted raw material undergoes a series of processing steps, including washing, drying, and refining, to remove impurities and achieve the desired purity and particle size distribution. In some cases, the kaolin may also be calcined (heated to high temperatures) to modify its properties and enhance its performance in specific applications.

Production inputs

The main inputs required for the kaolin industry include the raw kaolin deposits, which are typically found in sedimentary or weathered igneous rock formations. Additionally, the industry relies on various processing equipment, such as crushers, mills, and drying facilities, as well as energy sources (e.g., electricity, fuel) to power the production processes. Transportation infrastructure, such as roads and railways, is also essential for the efficient movement of raw materials and finished products.

Production outputs

The primary outputs of the kaolin industry are refined kaolin products, which are used as key ingredients in a wide range of industries. These include the 6907 Ceramic products, 4802 Uncoated paper and paperboard, 3207 Pigments, paints, and related materials, and 3904 Plastics and articles thereof sectors, among others. The versatility of kaolin allows it to be utilized in diverse applications, from the production of high-quality ceramics and paper to the formulation of specialized paints and plastics.

Family tree for kaolin and other kaolinic clays; whether or not calcined

    graph LR
    A["<a href='/classifications/hs/v2017/25'>25: Salt; sulphur; earths, stone; plastering materials, lime and cement</a>"]
A --> B["<a href='/classifications/hs/v2017/2507'>2507: Kaolin and other kaolinic clays; whether or not calcined</a>"]

    A --> C["<a href='/classifications/hs/v2017/2501'>2501: Salt (including table salt and denatured salt); pure sodium chloride whether or not in aqueous solution; sea water</a>"]
A --> D["<a href='/classifications/hs/v2017/2502'>2502: Iron pyrites; unroasted</a>"]
A --> E["<a href='/classifications/hs/v2017/2503'>2503: Sulphur of all kinds; other than sublimed, precipitated and colloidal sulphur</a>"]
A --> F["<a href='/classifications/hs/v2017/2504'>2504: Graphite; natural</a>"]
A --> G["<a href='/classifications/hs/v2017/2505'>2505: Sands of all kinds; natural, whether or not coloured, other than metal-bearing sands of chapter 26</a>"]
A --> H["<a href='/classifications/hs/v2017/2506'>2506: Quartz; (other than natural sands), quartzite, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape</a>"]
A --> I["<a href='/classifications/hs/v2017/2508'>2508: Clays; (not including expanded clays of heading no. 6806), andalusite kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earth</a>"]
A --> J["<a href='/classifications/hs/v2017/2509'>2509: Chalk</a>"]
A --> K["<a href='/classifications/hs/v2017/2510'>2510: Natural calcium phosphates; natural aluminium calcium phosphates and phosphatic chalk</a>"]
A --> L["<a href='/classifications/hs/v2017/2511'>2511: Natural barium sulphate (barytes); natural barium carbonate, (witherite) whether or not calcined, other than barium oxide of heading no. 2816</a>"]
A --> M["<a href='/classifications/hs/v2017/2512'>2512: Siliceous fossil meals (e.g. kieselguhr, tripolite and diatomite) and similar siliceous earths; whether or not calcined, of an apparent specific gravity of 1 or less</a>"]
A --> N["<a href='/classifications/hs/v2017/2513'>2513: Pumice stone; emery; natural corundum, natural garnet and other natural abrasives, whether or not heat treated</a>"]
A --> O["<a href='/classifications/hs/v2017/2514'>2514: Slate, whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape</a>"]
A --> P["<a href='/classifications/hs/v2017/2515'>2515: Marble, travertine, ecaussine and other calcareous stone; of an apparent specific gravity of less than 2.5, alabaster, whether cut by sawing etc, into blocks, slabs of a rectangular (square) shape</a>"]
A --> Q["<a href='/classifications/hs/v2017/2516'>2516: Granite, porphyry, basalt, sandstone, other monumental and building stone, whether or not roughly trimmed, cut, by sawing etc, into blocks or slabs of a rectangular (including square) shape</a>"]
A --> R["<a href='/classifications/hs/v2017/2517'>2517: Pebbles, gravel, crushed stone for concrete aggregates for road or railway ballast, shingle or flint; macadam of slag, dross etc tarred granules, chippings, powder of stones of heading no. 2515 and 2516</a>"]
A --> S["<a href='/classifications/hs/v2017/2518'>2518: Dolomite, whether or not calcined or sintered; including dolomite roughly trimmed, or merely cut by sawing or otherwise into blocks or slabs of rectangular (including square) shape; dolomite ramming mix</a>"]
A --> T["<a href='/classifications/hs/v2017/2519'>2519: Natural magnesium carbonate (magnesite); fused magnesia; dead-burned (sintered) magnesia, whether or not containing small quantities of other oxides added before sintering; magnesium oxide, pure or not</a>"]
A --> U["<a href='/classifications/hs/v2017/2520'>2520: Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate), coloured or not, with or without small quantities of accelerators or retarders</a>"]
A --> V["<a href='/classifications/hs/v2017/2521'>2521: Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement</a>"]
A --> W["<a href='/classifications/hs/v2017/2522'>2522: Quicklime, slaked lime and hydraulic lime; other than calcium oxide and hydroxide of heading no. 2825</a>"]
A --> X["<a href='/classifications/hs/v2017/2523'>2523: Portland cement, aluminous cement (ciment fondu), slag cement, supersulphate cement and similar hydraulic cements, whether or not coloured or in the form of clinkers</a>"]
A --> Y["<a href='/classifications/hs/v2017/2524'>2524: Asbestos</a>"]
A --> Z["<a href='/classifications/hs/v2017/2525'>2525: Mica, including splittings; mica waste</a>"]
A --> BA["<a href='/classifications/hs/v2017/2526'>2526: Natural steatite; whether or not roughly trimmed or merely cut, by sawing or otherwise, into blocks or slabs of a rectangular (including square) shape; talc</a>"]
A --> BB["<a href='/classifications/hs/v2017/2528'>2528: 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 % of H3BO3 calculated on the dry weight</a>"]
A --> BC["<a href='/classifications/hs/v2017/2529'>2529: Feldspar; leucite; nepheline and nepheline syenite; fluorspar</a>"]
A --> BD["<a href='/classifications/hs/v2017/2530'>2530: Mineral substances not elsewhere specified or included</a>"]

    B --> BE["<a href='/classifications/hs/v2017/250700'>250700: Kaolin and other kaolinic clays; whether or not calcined</a>"]


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    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
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class B level4
class C level4
class D level4
class E level4
class F level4
class G level4
class H level4
class I level4
class J level4
class K level4
class L level4
class M level4
class N level4
class O level4
class P level4
class Q level4
class R level4
class S level4
class T level4
class U level4
class V level4
class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB level4
class BC level4
class BD level4
class BE level6

  class B highlight

  %% class A level1
  %% class B,C level2
  %% class D,E,F,G,H,I level2
  %% class J,K,L,M,N,O,P level3
  %% class B highlight