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

HS v2022 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 a variety of applications, from ceramics and construction materials to fillers 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 under HS code 250840 typically involves mining, processing, and refining. Clay deposits are extracted from the earth using various mining techniques, such as open-pit or underground mining. The extracted clay is then crushed, dried, and purified to remove impurities and achieve the desired properties. Depending on the specific application, the clay may undergo further processing, such as calcination (heating to high temperatures) or chemical treatment.

Production inputs

The main inputs required for the production of clays under HS code 250840 include the raw clay deposits, mining and processing equipment, and energy sources for drying and calcination. The specific composition and properties of the clay deposits, as well as the desired end-use, will determine the additional inputs needed, such as chemicals for purification or specialized machinery for shaping and forming the clay.

Production outputs

The clays produced under HS code 250840 are used in a wide range of industries, including 691010 Ceramic sanitary fixtures, 690210 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, 681011 Building blocks and bricks of cement, concrete or artificial stone, and 340211 (Anionic surface-active agents (excluding soap)). These clays can also be used as fillers, absorbents, and in the production of various other products, such as paints, plastics, and cosmetics.

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 version):

This page shows the most recent version of code 250840.

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/v2022/25'>25: Salt; sulphur; earths, stone; plastering materials, lime and cement</a>"]
A --> B["<a href='/classifications/hs/v2022/2508'>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/v2022/250840'>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/v2022/250810'>250810: Clays (excluding expanded clays of heading no. 6806); bentonite, whether or not calcined</a>"]
B --> E["<a href='/classifications/hs/v2022/250830'>250830: Clays (excluding expanded clays of heading no. 6806); fireclay, whether or not calcined</a>"]
B --> F["<a href='/classifications/hs/v2022/250850'>250850: Clays (excluding expanded clays of heading no. 6806); andalusite, kyanite and sillimanite, whether or not calcined</a>"]
B --> G["<a href='/classifications/hs/v2022/250860'>250860: Clays (excluding expanded clays of heading no. 6806); mullite</a>"]
B --> H["<a href='/classifications/hs/v2022/250870'>250870: Clays (excluding expanded clays of heading no. 6806); chamotte or dinas earths</a>"]

    

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