Other
Slag wool, rock wool and similar mineral wools; exfoliated vermiculite, expanded clays, foamed slag and similar expanded mineral materials; mixtures and articles of heat-insulating, sound-insulating or sound-absorbing mineral materials, other than those of heading 6811 or 6812, or of chapter 69: > 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)
Subheadings
Products classified under HTS 6806.90.00
Foamed Slag Thermal Panels
Pre-fabricated panels of expanded foamed slag for industrial furnace insulation. HTS 6806.90.00 covers these as sound- and heat-insulating articles of expanded mineral materials, excluding chapter 69 products.
Mixture Mineral Wool Soundproofing Panels
Composite panels blending rock wool and expanded clay for studio sound absorption. HTS 6806.90.00 for mixtures/articles of heat/sound-insulating minerals other than 6811/12.
Perlite Loose-Fill Insulation Bags
Bagged expanded perlite granules for attic loose-fill insulation applications. HTS 6806.90.00 covers these expanded mineral materials packaged as insulating articles.
Rock Wool Insulation Batt
A pre-cut batt made from spun rock wool fibers, designed for thermal and acoustic insulation in walls and ceilings. It falls under HTS 6806.90.00 as a heat-insulating and sound-absorbing article of mineral material, not classified under headings 6811, 6812, or chapter 69.
Exfoliated Vermiculite Insulation Board
Compressed boards of expanded vermiculite used for fire-resistant insulation in construction. Classified under HTS 6806.90.00 as an article of expanded mineral material for heat-insulating purposes, distinct from mixtures of 6811 or ceramics.
Mineral Wool Acoustic Ceiling Tiles
Suspended ceiling tiles incorporating rock wool core for sound absorption in offices. Falls under HTS 6806.90.00 as sound-insulating articles of mineral materials, not furniture of chapter 94.
Expanded Clay Pebbles Hydroponic Grow Media
Lightweight clay balls expanded at high temperature for hydroponic plant support and drainage. Classified in HTS 6806.90.00 as expanded mineral material articles for thermal insulation properties.
Vermiculite Fireproofing Blanket
Flexible blankets of exfoliated vermiculite layered for fire protection in welding areas. HTS 6806.90.00 includes these as heat-insulating mineral material articles other than those in 6811/6812.
Mineral Wool Pipe Insulation Wrap
Flexible wrap of rock wool with foil facing for insulating steam pipes. Covered by HTS 6806.90.00 as sound/heat-insulating mineral articles, excluding chapter 69 products.
Basalt Fiber Rock Wool Roofing Board
Rigid roofing insulation boards made from melted basalt rock fibers. Classified under HTS 6806.90.00 as other mineral wool insulating articles.
Vermiculite Concrete Roof Insulation Deck
Precast concrete panels with exfoliated vermiculite aggregate for lightweight roofing. Falls under HTS 6806.90.00 as insulating articles incorporating expanded minerals.
Rock Wool HVAC Duct Liner
Adherable rock wool sheets for lining ventilation ducts to reduce noise and condensation. HTS 6806.90.00 for sound-insulating mineral material articles.
Expanded Mineral Wall Filler Compound
Ready-mixed compound of perlite/vermiculite for fire-rated wall cavity fill. Classified under HTS 6806.90.00 as heat-insulating mineral mixtures.
Slag Wool Automotive Sound Deadener
Mats of slag wool for vehicle floor sound insulation and vibration damping. HTS 6806.90.00 covers these sound-absorbing mineral articles.
Multilayer Mineral Insulation Quilt
Layered quilt combining rock wool and vermiculite sheets for high-performance building envelope insulation. Falls under HTS 6806.90.00 as composite insulating mineral articles.