Clays (excluding expanded clays of heading no. 6806); andalusite, kyanite and sillimanite, whether or not calcined

HS v2022 Code: 250850

About clays (excluding expanded clays of heading no. 6806); andalusite, kyanite and sillimanite, whether or not calcined

HS code 250850 covers a diverse range of natural mineral materials, including clays, andalusite, kyanite, and sillimanite. These materials have a wide variety of industrial and commercial applications, making them an important part of the global mining and manufacturing industries. They are used in the production of ceramics, refractories, fillers, and other specialized products, contributing to the construction, chemical, and various other sectors.

Production process

The production of materials under HS code 250850 typically involves mining and processing of natural mineral deposits. Clays are extracted from clay beds, while andalusite, kyanite, and sillimanite are mined from hard rock deposits. The extracted materials may undergo various processing steps, such as crushing, screening, washing, and in some cases, calcination (heat treatment) to improve their properties and purity.

Production inputs

The main inputs required for the production of HS code 250850 materials include the natural mineral deposits, mining and processing equipment, and energy sources for powering the extraction and processing operations. Depending on the specific application, additional inputs such as chemical additives or specialized machinery may also be required.

Production outputs

The materials classified under HS code 250850 are used as raw materials in a wide range of industries. Clays are commonly used in the production of 6907 Ceramic tiles and flags, 6908 Glazed ceramic tiles and flags, and 6901 Bricks, blocks, tiles and other ceramic goods. Andalusite, kyanite, and sillimanite are often used in the manufacture of 6902 Refractory bricks, blocks, tiles and similar refractory ceramic constructional goods, as well as in the production of specialized industrial and technical ceramics.

Revisions to 250850

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 250850. The most recent 1 version of this code (250850) is in the HS v2022 system (this version):

This page shows the most recent version of code 250850.

Family tree for clays (excluding expanded clays of heading no. 6806); andalusite, kyanite and sillimanite, 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/v2022/250850'>250850: Clays (excluding expanded clays of heading no. 6806); andalusite, kyanite and sillimanite, 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/v2022/250840'>250840: Clays (excluding expanded clays of heading no. 6806); n.e.c. in heading no. 2508, 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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