Clays (excluding expanded clays of heading no. 6806); n.e.c. in heading no. 2508, whether or not calcined

HS v2017 Code: 250840

About clays (excluding expanded clays of heading no. 6806); n.e.c. in heading no. 2508, whether or not calcined

HS code 250840 covers a diverse range of natural clay minerals that are widely used in various industries. These clays, excluding the expanded clays of heading 6806, are an essential raw material for numerous applications, from ceramics and construction materials to filtration and absorbents. Their importance in the global economy stems from their versatility, availability, and unique physical and chemical properties.

Production process

The production of clays covered under HS code 250840 typically involves the extraction of raw clay deposits from the earth's surface or underground mines. The extracted clay is then processed through a series of steps, including crushing, screening, washing, and in some cases, calcination (heating to high temperatures). These processes help to refine the clay, remove impurities, and enhance its desired properties for specific end-uses.

Production inputs

The primary inputs for the production of clays under HS code 250840 are the natural clay deposits found in various regions around the world. In addition to the raw clay material, the industry also requires specialized mining and processing equipment, such as excavators, crushers, and drying/calcination facilities. Energy sources, such as electricity or fossil fuels, are also necessary for the various processing steps involved.

Production outputs

The clays produced under HS code 250840 are used in a wide range of industries and applications. They are commonly used in the manufacture of 691010 ceramic sanitary fixtures, 691200 ceramic tableware, kitchenware, other household articles and toilet articles, and 6907 ceramic flags and paving, hearth or wall tiles; ceramic mosaic cubes and the like. Additionally, these clays are used as fillers, absorbents, and additives in various 3824 prepared binders for foundry molds or cores; chemical products and preparations of the chemical or allied industries, 3802 activated carbon; activated natural mineral products; animal black, including spent animal black, and 3802 activated carbon; activated natural mineral products; animal black, including spent animal black industries.

Revisions to 250840

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 250840. The most recent 1 version of this code (250840) is in the HS v2022 system:

This page shows a legacy version of code 250840 ( HS v2017).

Older versions

Family tree for clays (excluding expanded clays of heading no. 6806); n.e.c. in heading no. 2508, 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/v2017/2508'>2508: Clays; (not including expanded clays of heading no. 6806), andalusite kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earth</a>"]
B --> C["<a href='/classifications/hs/v2017/250840'>250840: Clays (excluding expanded clays of heading no. 6806); n.e.c. in heading no. 2508, whether or not calcined</a>"]

    B --> D["<a href='/classifications/hs/v2017/250810'>250810: Clays (excluding expanded clays of heading no. 6806); bentonite, whether or not calcined</a>"]
B --> E["<a href='/classifications/hs/v2017/250830'>250830: Clays (excluding expanded clays of heading no. 6806); fireclay, whether or not calcined</a>"]
B --> F["<a href='/classifications/hs/v2017/250850'>250850: Clays (excluding expanded clays of heading no. 6806); andalusite, kyanite and sillimanite, whether or not calcined</a>"]
B --> G["<a href='/classifications/hs/v2017/250860'>250860: Clays (excluding expanded clays of heading no. 6806); mullite</a>"]
B --> H["<a href='/classifications/hs/v2017/250870'>250870: Clays (excluding expanded clays of heading no. 6806); chamotte or dinas earths</a>"]

    

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