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Rock Wool Insulation Batt

Rock wool batts are made from spun molten rock fibers, formed into flexible sheets or rolls for thermal and acoustic insulation in buildings. Classified under HTS 6806.10.00 as rock wool in sheets or rolls, excluding finished articles of heading 6811 or 6812.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.9%+37.5%41.4%
🇲🇽Mexico3.9%+10.0%13.9%
🇨🇦Canada3.9%+10.0%13.9%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

6811.82.00Lower: 37.5% vs 41.4%

If manufactured into rigid slabs or molded shapes

Finished articles like rigid insulation boards fall under 6811 for prefabricated mineral material products.

6806.20.00Lower: 37.5% vs 41.4%

If made from exfoliated vermiculite or expanded clays

Expanded mineral materials other than wools classify in the next subheading 6806.20.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Verify product is in bulk, sheets, or rolls; finished panels may classify under 6811

• Provide mineral composition certificates to confirm slag/rock wool content

• Ensure fire resistance ratings match claims to avoid misclassification as articles