Other
Other clays (not including expanded clays of heading 6806), andalusite, kyanite and sillimanite, whether or not calcined; mullite; chamotte or dinas earths: > Other clays > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 2508.40.01.50
Sepiolite Meerschaum Ore
Natural sepiolite clay mineral, known as meerschaum ore, used for pipes and absorbents. Falls under HTS 2508.40.0150 as other clays, explicitly covered in heading 2530 note but prioritized here if not polished.
Kaolin Clay Powder
Finely ground kaolin clay, also known as china clay, used primarily in ceramics, paper manufacturing, and as a filler in paints. Classified under HTS 2508.40.0150 as 'other clays' (excluding expanded clays), in crude or powdered form, not further processed beyond grinding. It meets the chapter definition for natural clays suitable for industrial applications.
Ball Clay for Ceramics
Plastic ball clay mined and processed for pottery and tile production, valued for its fine grain and binding properties. Falls under HTS 2508.40.0150 as 'other clays' not elsewhere specified, including uncalcined kaolinitic clays for industrial use.
Bentonite Clay Swellable Grade
Sodium montmorillonite bentonite clay with high swelling capacity, used in drilling muds and sealants. HTS 2508.40.0150 covers this as 'other clays', unexpanded and suitable for industrial applications like oilfield services.
Fuller's Earth Attapulgite
Absorbent attapulgite fuller's earth used for oil refining and cat litter bases. Classified in HTS 2508.40.0150 as other clays, representing natural mineral absorbents not calcined or expanded.
Common Brick Clay Raw
Unprocessed loamy clay suitable for manufacturing common bricks and tiles. HTS 2508.40.0150 includes such 'other clays' in natural state, not prepared for immediate refractory use.
Calcined Kaolin Metakaolin
Partially calcined kaolin producing metakaolin for high-performance concrete Pozzolanic reaction. HTS 2508.40.0150 includes calcined 'other clays' unless specifically chamotte; metakaolin qualifies as processed clay.
Attapulgite Drilling Grade Clay
Fibrous attapulgite clay optimized for oil well drilling fluids, providing suspension properties. Classified under 2508.40.0150 as other clays in powdered or granular form for industrial use.
Earthenware Pottery Clay Body
Blended clay body for earthenware pottery production, containing kaolin, ball clay, and flint. HTS 2508.40.0150 as 'other clays' prepared but not fired, suitable for ceramic manufacturing.