Other
Mineral substances not elsewhere specified or included: > Other: > Other
Duty Rate (from China)
Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Products classified under HTS 2530.90.80
Unexpanded Vermiculite Ore
Raw vermiculite ore extracted from natural deposits, unexpanded and suitable for horticultural or insulation applications after processing. Classified under HTS 2530.90.80 as unexpanded vermiculite, a mineral substance not elsewhere specified per chapter notes. It falls into 'other' mineral substances in heading 2530.
Raw Perlite Rock
Natural volcanic glass perlite in unexpanded ore form, used in lightweight concrete and filtration after expansion. HTS 2530.90.80 covers unexpanded perlite as 'other' mineral substances not specified elsewhere. Explicitly included in heading 2530 per chapter notes.
Natural Micaceous Iron Oxide Powder
Ground micaceous iron oxide from natural deposits, used as pigment in paints for corrosion resistance. Falls under HTS 2530.90.80 as explicitly listed 'natural micaceous iron oxides' in other mineral substances. Not earth colors exceeding 70% iron per exclusions.
Raw Meerschaum Ore
Natural hydrated magnesium silicate mineral (sepiolite) in rough ore form, prized for pipe carving. HTS 2530.90.80 includes meerschaum not in polished pieces as other mineral substances. Unworked state keeps it in heading 2530.
Rough Amber Chunks
Fossilized tree resin in natural rough chunks, used for jewelry after cutting. Classified in HTS 2530.90.80 as amber not agglomerated or worked post-molding per chapter notes. Represents 'other' unworked mineral substances.
Calcined Earth Colors Mix
Mixture of calcined natural earth colors like ochers and umbers for artist pigments. HTS 2530.90.80 covers calcined or mixed earth colors under 'other' as long as iron <70%. Excluded only if high-iron per chapter note.
Unexpanded Chlorite Mineral
Natural chlorite group minerals in raw form, used in ceramics and fillers. Included in HTS 2530.90.80 as chlorites unexpanded per heading scope. Other unspecified mineral phyllosilicates.
Raw Strontianite Ore
Natural strontium carbonate mineral ore, source for strontium compounds. HTS 2530.90.80 explicitly includes strontianite (not oxide) as other mineral substances. Uncalcined rough form.
Natural Jet Mineral Rough
Fossilized lignite known as jet, in rough pieces for jewelry carving. Classifies under HTS 2530.90.80 as jet, an organic sedimentary mineral substance not elsewhere specified. Unworked state applies.
Agglomerated Meerschaum Rods Unworked
Meerschaum powder agglomerated into rods or sticks, not further worked after molding. HTS 2530.90.80 includes such forms per chapter notes for agglomerated meerschaum. Borderline but unworked post-molding.
Mixed Natural Mineral Pigments
Blend of natural ochers, siennas, and umbers mixed for pigment use, calcined. Under HTS 2530.90.80 as mixed earth colors <70% iron, other mineral substances. Raw pigment material.
Perlite Ore Fines
Fine crushed unexpanded perlite ore for soil amendment. HTS 2530.90.80 as unexpanded perlite, other mineral not specified. Size reduction doesn't change heading.
Vermiculite Flakes Unexpanded
Natural vermiculite split into thin flakes, unexpanded for industrial fillers. Classifies HTS 2530.90.80 as unexpanded vermiculite per statistical notes context. Processed but not expanded.
Micaceous Iron Oxide Lumps
Natural micaceous iron oxide in lump ore form before grinding. HTS 2530.90.80 lists natural micaceous iron oxides explicitly in other minerals. Raw feed for pigments.
Rough Sepiolite Meerschaum
Sepiolite clay mineral (meerschaum variety) in rough blocks from deposits. Under HTS 2530.90.80 as meerschaum not polished, other mineral substances. Absorbent and carving material.