HTS 6806.10.00 duty rate

Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, she…. General duty 3.9%; for goods of Chinese origin, general + Section 301 (+25%) comes to 28.9% before any other duties.

3.9%General (MFN) duty rate

List 3 +25%Section 301, products of China

28.9%General + Section 301 for China, ad valorem

30%Column 2 (Cuba, North Korea, Russia, Belarus)

Official USITC Harmonized Tariff Schedule, 2026HTSRev20 · data built 2026-10-02 · check on hts.usitc.gov

Tariff line	6806.10.00
Description	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: › Slag wool, rock wool and similar mineral wools (including intermixtures thereof), in bulk, sheets or rolls
General rate	3.9%
Special rate (trade programs)	Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)
Column 2 rate	30%
Units of quantity	see statistical lines
Section 301 (China)	List 3 +25%
Footnotes	See 9903.90.08.

Section 301 China tariffs on this line

Chapter 99 heading	List	Extra duty	Status
9903.88.03	List 3	+25%	in effect

Statistical reporting numbers (10-digit)

Report the 10-digit number on the entry; the duty rate is the one above.

Code	Description
6806.10.00.10	Accoustical pads and boards
6806.10.00.20	Batts, not exceeding 61 cm in width
6806.10.00.40	Batts, exceeding 61 cm in width
6806.10.00.60	Pipe coverings
6806.10.00.90	Other

2026 US–China tariff reduction lists: The US–China reduction lists are not published yet. Dutyfinch checks the Federal Register every day and flags each code as soon as the list appears.

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Nearby tariff lines

6806.20.00 · 6806.90.00

← 6805.30.50 · 6806.20.00 → · Heading 6806 · Chapter 68 · Chapter 68 rate summary

General information from the official US Harmonized Tariff Schedule (USITC) and Federal Register; not legal or customs advice. Section 232, IEEPA, antidumping/countervailing and other duties can also apply. Confirm classification and rates with CBP or a licensed customs broker before you file.