HTS 6806.90.00.10: US import duty from China

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, Other, Accoustical pads and boards. Here is the full China to US duty stack and what it costs to land.

Duty rate & fees

ChargeRate
Base duty (MFN)0%
Section 301 (Lists 1-4)25%
Total duty (on customs value)25%
Merchandise Processing Fee (MPF)0.3464% (min $33.58, max $651.50)
Harbor Maintenance Fee (HMF), ocean0.125%

Worked example: $10,000 shipment

Customs value$10,000.00
Base duty (MFN)$0.00
Section 301 (Lists 1-4)$2,500.00
Merchandise Processing Fee$34.64
Harbor Maintenance Fee$12.50
Total landed cost$12,547.14

Excludes freight and insurance. Run your exact numbers in the calculator →

FAQ

What is the import duty on HTS 6806.90.00.10 from China?

Goods classified under HTS 6806.90.00.10 (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, Other, Accoustical pads and boards) have a duty of 25% of the customs value on the China to US lane (base rate plus any Section 301 tariff), plus the Merchandise Processing Fee (0.3464%, min $33.58, max $651.50) and, for ocean shipments, the Harbor Maintenance Fee (0.125%).

What does HTS code 6806.90.00.10 cover?

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, Other, Accoustical pads and boards. US Customs and Border Protection determines the final classification at entry.

How much does it cost to import HTS 6806.90.00.10 from China?

On a $10,000 shipment, the estimated total landed cost is $12,547, about 25.5% in duty and fees. Use the calculator for your exact value, quantity, and shipping mode.

Related codes in heading 6806

All of Chapter 68: Articles of stone, plaster, cement, asbestos, mica or similar materials

Estimates for planning only. Final classification and duty are determined by U.S. Customs and Border Protection at entry. Rates from USITC HTSUS 2026-06-15-cn-us. The IEEPA reciprocal tariff was struck down (SCOTUS, 2026-02-20) and is excluded. Not legal or customs-broker advice.