Duty Rate (from China)
Subheadings
Products classified under Tariff item 2524.90
Actinolite Asbestos Raw Fiber
Actinolite asbestos raw fiber consists of green amphibole fibers extracted from metamorphic rock deposits, presented in raw unprocessed bundles. This product is in a crude state, having undergone only mechanical separation, and is not subjected to any processing beyond that permitted by Chapter 25 Note 1. It is classified under tariff item 2524.90.00 as 'other asbestos' since it is not a more specifically named type.
2524.90.00Amosite Asbestos (Brown Asbestos)
Amosite asbestos, also known as brown asbestos, is a raw amphibole mineral fiber prized for its durability and resistance to acids. Sourced from South African deposits, it is imported in a crude or processed state, such as crushed or fiberized, without undergoing roasting or calcination. This places it under tariff item 2524.90.00, which covers asbestos types not elsewhere specified.
2524.90.00Amosite Asbestos Fibers
Amosite asbestos fibers are loose fibrous amosite asbestos separated from ore, with fiber lengths typically 1-5 cm, suitable for industrial blending. The product has undergone mechanical separation but is not further processed, remaining in a crude state. It is classified under tariff item 2524.90.00 as 'other asbestos' since amosite is not separately named in the tariff.
2524.90.00Amosite Asbestos Mine Concentrate
Amosite asbestos mine concentrate is concentrated amosite fibers from ore dressing processes, containing 70-90% amphibole content without chemical treatment. This intermediate crude form has undergone mechanical concentration (e.g., flotation or magnetic separation) which is permitted under Chapter 25 Note 1. It is classified under tariff item 2524.90.00 as 'other asbestos'.
2524.90.00Amosite Asbestos Ore
Amosite asbestos ore is a raw mineral ore containing long, coarse brown fibers of the amphibole mineral grunerite, sourced from mining operations. The product is in its natural state, not milled or processed beyond extraction, and is therefore classifiable as crude asbestos. It falls under tariff item 2524.90.00 as 'other asbestos' since amosite is not separately named in the tariff.
2524.90.00Amosite Asbestos Rock Fines
Amosite asbestos rock fines are crushed amosite-bearing rock containing amphibole fibers, with particle size under 2 mm, from mining operations. The product has undergone crushing and screening, which are mechanical processes permitted under Chapter 25 Note 1. It is classified under tariff item 2524.90.00 as 'other asbestos' since amosite is not specifically named.
2524.90.00Anthophyllite Asbestos Fiber
Anthophyllite asbestos fiber is a less common amphibole mineral with moderate heat resistance, often recovered as a byproduct from talc mining operations. The raw fibers, in a loose or processed state, are not roasted or chemically altered, aligning with the scope of tariff item 2524.90.00. This item covers asbestos types not specifically named elsewhere in the tariff schedule.
2524.90.00Anthophyllite Asbestos Mineral
Anthophyllite asbestos mineral is a gray-brown amphibole asbestos occurring as cleavage fragments in raw ore, typically from deposits in Finland or the USA. The product is in a crude state, having undergone only mechanical extraction without further processing. It is classified under tariff item 2524.90.00 as 'other asbestos' because anthophyllite is not specifically named in the tariff schedule.
2524.90.00Chrysotile Asbestos-Bearing Serpentine Rock
Chrysotile asbestos-bearing serpentine rock is natural serpentine rock containing embedded chrysotile asbestos fibers in crude, unseparated state from mining operations. The product is in its crude state, not processed beyond extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'. It is not specifically named in the tariff.
2524.90.00Chrysotile Asbestos Fiber
Chrysotile asbestos fiber is a naturally occurring serpentine mineral fiber extracted from deposits in regions like Quebec or Russia. This raw fiber material is in a crude state, not milled or processed beyond initial extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'. It is the most common form of asbestos and is not separately named in the tariff.
2524.90.00Chrysotile Asbestos Flakes for Gaskets
Chrysotile asbestos flakes for gaskets are split but not shaped into final products, remaining in a raw mineral state. The splitting is a mechanical process allowed under Chapter 25, and the flakes are not fabricated into articles.
2524.90.00Chrysotile Asbestos Short Fiber Grade
Chrysotile asbestos short fiber grade is graded for reinforcement in friction materials, with fibers separated and lightly processed but remaining raw mineral. The processing is mechanical, and the product is not fabricated into articles, so it falls under tariff item 2524.90.00.
2524.90.00Chrysotile Milled Fiber Grade 4
Chrysotile milled fiber grade 4 consists of finely milled asbestos fibers processed by grinding into short, fibrous particles for reinforcement. The grinding is a mechanical process that does not alter the mineral structure, so it falls under tariff item 2524.90.00 as other asbestos.
2524.90.00Chrysotile Spinning Grade Milled Fibers
Chrysotile spinning grade milled fibers are group 3 asbestos fibers processed to a fine, fibrous consistency suitable for yarn spinning. The milling is a mechanical process that does not alter the mineral structure, keeping it within Chapter 25 as a product of the crude state or simple processing.
2524.90.00Crocidolite Asbestos (Blue Asbestos)
Crocidolite asbestos, or blue asbestos, is a rare amphibole mineral known for its high tensile strength and heat resistance, historically mined in South Africa and Australia. Imported as raw fiber or splittings, it is not roasted or calcined, meeting the conditions of Chapter 25. Tariff item 2524.90.00 applies as a catch-all for asbestos types not individually listed.
2524.90.00Crocidolite Asbestos Rock
Crocidolite asbestos rock is a fibrous amphibole mineral mined primarily from South Africa and Australia, appearing as blue needle-like fibers in rock matrix. The product is in its crude state, not processed beyond extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'. However, crocidolite is specifically named in the tariff, so it may fall under a different tariff item if presented separately.
2524.90.00Crude Chrysotile from Open-Pit Mining
Crude chrysotile from open-pit mining is chrysotile asbestos crude extracted via open-pit methods, delivered as large ore fragments without screening or fiber opening. The product is in its crude state, not processed beyond extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'. It is not specifically named in the tariff.
2524.90.00Grade 4/5 Milled Asbestos for Friction Compounds
Grade 4/5 milled asbestos for friction compounds is a blend of group 4 and 5 chrysotile fibers for automotive friction materials. The blending is a mechanical process, but note that mixing products may be excluded from Chapter 25 unless it is a simple physical mixture of asbestos grades.
2524.90.00Grade 7 Chrysotile Asbestos Spinning Fiber
Grade 7 chrysotile asbestos spinning fiber consists of long fibers selected for textile processing but remains raw. The selection is a mechanical process, and the fibers are not spun into yarn, so they are classified under tariff item 2524.90.00 as other asbestos.
2524.90.00Group 3 Chrysotile Milled Asbestos for Friction Spinning
Group 3 chrysotile milled asbestos for friction spinning is fine-milled fiber suitable for blending into friction material yarns. The mechanical milling process is permitted under Chapter 25, as it does not change the mineral's structure, and the product remains in a raw, unworked state.
2524.90.00Group 5 Grade Chrysotile Milled Asbestos Fiber
Group 5 grade chrysotile milled asbestos fiber is ultra-fine milled asbestos for high-dispersion applications in friction materials. The milling is a mechanical process that keeps the product within Chapter 25, as it is not roasted, calcined, or mixed.
2524.90.00High-Purity Group 5 Chrysotile Milled Fiber
High-purity group 5 chrysotile milled fiber is a specialty asbestos fiber for gaskets and seals, processed to meet group 4/5 milling tolerances. The milling is mechanical, and the product remains in a raw state, so it is classified under tariff item 2524.90.00.
2524.90.00Industrial Grade 4 Milled Chrysotile Fibers
Industrial grade 4 milled chrysotile fibers are produced by dry milling for use in cement reinforcement and roofing compounds. The dry milling is a mechanical process that does not change the mineral structure, so it falls under tariff item 2524.90.00 as other asbestos.
2524.90.00Industrial Spinning Chrysotile Group 3 Milled Fibers
Industrial spinning chrysotile group 3 milled fibers are high-grade asbestos fibers processed for spinning into heat-resistant yarns. The milling is a mechanical operation that preserves the mineral's identity, placing it under tariff item 2524.90.00 as other asbestos.
2524.90.00Milled Chrysotile Asbestos Powder
Milled chrysotile asbestos powder is reduced to powder form for filler applications, with milling separating fibers without fabricating into articles. The milling is mechanical, and the product remains unworked, so it falls under tariff item 2524.90.00.
2524.90.00Raw Amosite Asbestos Ore
Raw amosite asbestos ore is natural amosite asbestos ore extracted from deposits, consisting primarily of grunerite amphibole mineral in fibrous form. The product is in its crude state, not processed beyond extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'. It is not specifically named in the tariff, so it falls under the residual category.
2524.90.00Raw Chrysotile Asbestos Fiber
Raw chrysotile asbestos fiber is extracted from serpentine rock deposits and is not in crude form, meaning it has been separated from the rock. The separation is a mechanical process, and the fibers remain unworked, so they are classified under tariff item 2524.90.00.
2524.90.00Raw Chrysotile Asbestos Ore
Raw chrysotile asbestos ore is unprocessed chrysotile asbestos in its crude ore form, extracted directly from serpentine rock deposits, containing fibers embedded in host rock. The product is in its crude state, not subjected to any processing beyond extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'.
2524.90.00Serpentine Chrysotile Crude Lumps
Serpentine chrysotile crude lumps are lump-form crude chrysotile asbestos from serpentine deposits, uncrushed and retaining natural ore structure without fiber extraction. The product is in its crude state, not processed beyond extraction, and is classifiable under tariff item 2524.90.00 as 'other asbestos'.
2524.90.00Spinning Grade Chrysotile Asbestos Powder Fibers
Spinning grade chrysotile asbestos powder fibers are group 3 milled fibers in powdered form, optimized for spinning in high-strength composites. The powder is produced by mechanical milling, which is allowed under Chapter 25, and the product remains unworked asbestos.
2524.90.00Tremolite Asbestos Powder
Tremolite asbestos powder is a white amphibole mineral in powdered form, obtained by crushing and milling raw tremolite-actinolite deposits. The product has undergone mechanical processing (crushing and milling) which is permitted under Chapter 25 Note 1, but no chemical treatment or further processing has occurred. It is classified under tariff item 2524.90.00 as 'other asbestos' since tremolite is not specifically named.
2524.90.00Tremolite Asbestos Raw Splittings
Tremolite asbestos raw splittings are magnesium-rich amphibole fibers separated from metamorphic rock through mechanical means. These raw fibers, not subjected to roasting or chemical processing, are classifiable under tariff item 2524.90.00. This item covers asbestos types other than those specifically enumerated, such as chrysotile.
2524.90.00Unmilled Chrysotile Asbestos Rough
Unmilled chrysotile asbestos rough, as mined, consists of ore lumps with intact fiber veins that have not been separated or carded. It is in a crude state, with no processing beyond extraction, and therefore falls under tariff item 2524.90.00 for other asbestos.
2524.90.00Unpurified Amosite Asbestos Splittings
Unpurified amosite asbestos splittings are roughly split laminae of amosite asbestos from ore veins, not further processed beyond initial splitting. This mechanical process is permitted under Chapter 25 Note 1, and the product remains in a crude state. It is classified under tariff item 2524.90.00 as 'other asbestos'.