Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls
Classified under heading 6806 — chapter 68 of the US Harmonized Tariff Schedule.
General rate applies to goods from countries with normal trade relations. Special rates require a program code (USMCA, GSP, AGOA…). Column 2 applies where normal trade relations do not.
Duty calculator
Estimate the duty owed on an import under HTS 6806.10.00.
Excludes merchandise processing fees, Section 301 duties, antidumping/countervailing duties and freight. Estimates only — not customs advice.
Where this rate sits
Heading 6806 contains 2 tariff lines. The general rate on this line is 3.9%, against an average of 3.9% across the heading (range 3.9%–3.9%).
| Metric | This line | Heading 6806 |
|---|---|---|
| General rate | 3.9% | avg 3.9% |
| Duty-free lines | no | 1 of 2 |
| Specific-rate lines | no | 0 |
Classification path
- 6806Slag 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
- 6806.10.00Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls
All 2 tariff lines under heading 6806
Heading overview →| HTS code | Description | General | Col. 2 |
|---|---|---|---|
| 6806.10.00 | Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rollsthis page | 3.9% | 30% |
| 6806.90.00 | Other | Free | 30% |
Using HTS 6806.10.00 correctly
A ten-digit HTS number has three parts: the four-digit heading, the six-digit international subheading shared by every WTO member, and the two-digit US statistical suffix. 6806.10.00 is a US national line — the same product may carry a different suffix in the EU TARIC or in another country's tariff.
Classification is determined by the General Rules of Interpretation, not by what the product is called on the invoice. If your goods could fall in two headings, GRI 1 sends you to the heading with the most specific description; GRI 3 breaks ties by essential character. A GRI 3(b) mistake is the single most common reason an entry gets reclassified and billed for unpaid duty plus interest.