Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate), coloured or not, with or without small quantities of accelerators or retarders

HS v2017 Code: 2520

Chapter	Heading	Sub-heading
25	20	n/a

Code	2520
Version	HS v2017
Hierarchy Level	4
Datasource	WCO
Chapter	25

Ancestor Codes: Salt; sulphur; earths, stone; plastering materials, lime and cement

This Code: Gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate), coloured or not, with or without small quantities of accelerators or retarders

Child Codes: Gypsum; anhydrite; Plasters; (consisting of calcined gypsum or calcium sulphate), whether or not coloured, with or without small quantities of accelerators or retarders

Sibling Codes (Nearest 5): 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; 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; 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; Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement; Quicklime, slaked lime and hydraulic lime; other than calcium oxide and hydroxide of heading no. 2825

About gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate), coloured or not, with or without small quantities of accelerators or retarders

HS code 2520 covers a range of mineral products that are essential for the construction industry. Gypsum, anhydrite, and plasters made from calcined gypsum or calcium sulphate are the primary materials classified under this code. These materials play a crucial role in the production of various building materials, making them an integral part of the broader construction and real estate sectors.

Production process

The production of gypsum, anhydrite, and plasters typically involves mining, crushing, and processing the raw mineral deposits. Gypsum is often extracted from natural deposits, while anhydrite may be obtained as a by-product from other industrial processes. The raw materials are then crushed, ground, and calcined (heated) to remove water and produce the desired plaster products. Depending on the specific application, various additives such as accelerators or retarders may be incorporated to modify the setting and drying properties of the plasters.

Production inputs

The main inputs required for the production of gypsum, anhydrite, and plasters include the raw mineral deposits, which are typically mined from natural sources. Additionally, energy sources such as electricity or fossil fuels are needed to power the crushing, grinding, and calcining processes. Specialized equipment, such as crushers, mills, and kilns, are also essential for the production of these materials.

Production outputs

The primary outputs of HS code 2520 are gypsum, anhydrite, and various types of plasters. These materials are widely used in the construction industry, serving as key components in the production of drywall, plasterboard, cement, and other building materials. The outputs of this industry are often consumed by manufacturers of 6809 Building boards, sheets, panels, tiles and similar articles, of plaster or of compositions based on plaster, 2523 Cement, and 6815 (Articles of stone or of other mineral substances (including articles of peat), n.e.s.).

Family tree for gypsum; anhydrite; plasters (consisting of calcined gypsum or calcium sulphate), coloured or not, with or without small quantities of accelerators or retarders

    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/v2017/2520'>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 --> 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/v2017/2507'>2507: Kaolin and other kaolinic clays; whether or not calcined</a>"]
A --> J["<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 --> K["<a href='/classifications/hs/v2017/2509'>2509: Chalk</a>"]
A --> L["<a href='/classifications/hs/v2017/2510'>2510: Natural calcium phosphates; natural aluminium calcium phosphates and phosphatic chalk</a>"]
A --> M["<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 --> N["<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 --> O["<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 --> P["<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 --> Q["<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 --> R["<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 --> S["<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 --> T["<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 --> U["<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 --> 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/v2017/252010'>252010: Gypsum; anhydrite</a>"]
B --> BF["<a href='/classifications/hs/v2017/252020'>252020: Plasters; (consisting of calcined gypsum or calcium sulphate), whether or not coloured, with or without small quantities of accelerators or retarders</a>"]


    %% Color coordination by level

    classDef level1 color:#000,fill:#a8f9ff,stroke:#333,stroke-width:2px
    classDef level2 color:#000,fill:#e0a458,stroke:#333,stroke-width:1px
    classDef level3 color:#000,fill:#419d78,stroke:#333,stroke-width:1px
    classDef level4 color:#000,fill:#c04abc,stroke:#333,stroke-width:1px
    classDef level5 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef level6 color:#000,fill:#f1c40f,stroke:#333,stroke-width:1px
    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



  %% Apply classes
  class A level2
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 BF 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