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Basalt Rock Wool Bulk Insulation

Bulk bags of basalt-derived rock wool fibers for on-site fabrication into insulation. Classified in HTS 6806.10.00.90 as rock wool in bulk form for heat/sound insulation, per Chapter 68 notes excluding coated or Chapter 69 items.

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.

2517.10.00Lower: 37.5% vs 41.4%

If unworked pebbles or granules

Raw unexpanded mineral materials stay in Chapter 25, per exclusions.

6811.81.00.00Lower: 37.5% vs 41.4%

If corrugated sheets

Corrugated or molded mineral material articles classify under 6811.

6903.20.00.00Lower: 37.5% vs 41.4%

If refractory expanded materials

Refractory products of any composition go to Chapter 69.

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

• Provide origin certificates for basalt source to confirm natural mineral status

• Label clearly as 'bulk' to prevent confusion with finished articles

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