HTS 6806.10.00 · Chapter 68
Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls
General (MFN) duty, special preferential rates, and where HTS 6806.10.00 sits in the US Harmonized Tariff Schedule.
- 3.9%
- General (MFN) rate
- Free (A,AU,B…
- Special / FTA rate
- 30%
- Column 2 (non-MFN)
- Ch 68
- Articles of stone, pla…
According to the U.S. International Trade Commission Harmonized Tariff Schedule 2026 Basic Edition, PlainTariff indexes 13,855 Column 1 general-rate tariff lines across 96 chapters as of August 2026. See our methodology for how rates are parsed and when the USITC vintage updates.
The verdict
According to the USITC HTS 2026 Basic Edition ad-valorem general rates on PlainTariff, HTS 6806.10.00 ranks #4601 of 6827 among dutiable tariff lines (highest duty = #1, matching /rankings/highest-tariffs). At 3.9%, the general duty is above the median US tariff rate, higher than 65% of the 13,544 ad-valorem lines.
- 3.9%
- General (MFN) rate
- #4601 of 6827
- among dutiable lines
- Ch 68
- Articles of stone, pla…
Where HTS 6806.10.00 sits in the US duty-rate distribution
All rate-bearing tariff lines in the USITC HTS 2026 Basic Edition; this is a rate comparison, not a classification recommendation.
3.9% Top 35% higher than 65% of 13,544 rate-bearing tariff lines
USITC tariff lines grouped by their published general (MFN) duty rate
Each bar is a published general (MFN) duty-rate band; taller bars hold more rate-bearing tariff lines. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source US International Trade Commission Harmonized Tariff Schedule · 2026-05-15
About HTS 6806.10.00
HTS code 6806.10.00 classifies imports of: Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls. This line sits within Chapter 68 (Articles of stone, plaster, cement, asbestos, mica or similar materials), Section XIII (Stone, Plaster, Cement; Ceramic; Glass), and is catalogued as a tariff line in the USITC 2026 Basic Edition. The schedule specifies ad valorem (percentage-of-value) duty for this line. A footnote applies to this classification: See 9903.88.03. See 9903.90.08.
The general (MFN / Column 1 General) rate for HTS 6806.10.00 is 3.9%, which applies to most trading partners of the United States. A special preferential rate of "Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)" may reduce or eliminate duty when goods qualify under a free trade agreement such as USMCA, CAFTA-DR, or one of the bilateral FTAs. The Column 2 rate of 30% applies to imports from non-MFN countries such as Cuba and North Korea, a much higher historical "full" tariff.
Footnotes: See 9903.88.03. See 9903.90.08. Beyond the published rate, importers should check for Section 201 safeguards, Section 301 China tariffs, and any active AD/CVD orders that can materially change the real landed cost. Always verify the classification with a licensed customs broker before committing to a supply contract, this page is a research tool, not a customs ruling.
Duty Rate Summary, HTS 6806.10.00
| Rate Column | Value | Applies To |
|---|---|---|
| General (Column 1) | 3.9% | Most-favored-nation (MFN) trading partners, the default rate for most US imports. |
| Special | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | Preferential rates under FTAs (USMCA, CAFTA-DR, GSP, etc.) when origin qualifies. |
| Column 2 | 30% | Statutory non-MFN rate for goods from countries without normal trade relations (Cuba, North Korea). |
Source: USITC Harmonized Tariff Schedule 2026 Basic Edition. See methodology for refresh cadence.
Details
- Classification
- Tariff Line
- Footnotes
- See 9903.88.03. See 9903.90.08.
Related Items in Chapter 68
Showing 10 of 67 tariff lines in HTS Chapter 68.
Setts, curbstones and flagstones, of natural stone (except slate)
Tiles, cubes and similar articles, whether or not rectangular (including square), the largest face of which is capable of being enclosed in a square the side of which is less than 7 cm; artificially colored granules, chippings and powder
Travertine
Other
Granite
Calcareous stone, other than marble, travertine or alabaster
Other
Slabs
Other
Articles of subheading 6802.21.10 that have been dressed or polished, but not further worked
Nationwide tariff lines with similar duty rates
Two peer sets for HTS 6806.10.00, each excluding Chapter 68 so the neighborhoods are not self-containment (the related-items list above stays the within-chapter path).
Similar general (MFN) rate
Nearest other tariff lines by Column 1 general duty (3.9% here).
Similar Column 2 rate
Nearest other tariff lines by Column 2 (other) duty (30% here).
Next steps
HTS 6806.10.00 is one line in the schedule. Drill up to the chapter or out to tools and rankings.
- Browse 67 tariff lines in Chapter 68. Chapter 68
- See all 3 chapters under Section XIII. Section XIII
- Estimate landed duty for a shipment in this chapter. Tariff calculator
- See where this rate ranks among the steepest US import duties. Highest tariffs
- Save HTS lines you monitor on this device. Tariff watchlist
Preferential (Special) rates and Section 301/232 duties may change the duty a shipment actually pays.
Frequently Asked Questions
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Sources: U.S. International Trade Commission Harmonized Tariff Schedule (2026 Basic Edition) and FAO FAOSTAT Trade: Crops and Livestock. See our methodology for how figures are computed.
Every figure on PlainTariff is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.