HSChapter 68
U.S. imports of worked mica and articles of mica (nesoi) (HS 681490) totaled $1.5M in April 2026, traded with 18 countries.
Importers of Worked Mica and Articles of Mica (NESOI) paid $271K in duties in April 2026 — an effective duty rate of 18% on $1.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataProcessed mica and mica-based articles not elsewhere specified enter the US under a single 10-digit line, 6814900000, covering a wide range of fabricated forms used in electrical insulation, cosmetics, and specialty industrial applications. Vietnam leads US supply, followed by China and Austria, reflecting both low-cost sheet-splitting operations and high-precision European fabrication. Importers should verify whether the article qualifies as mica splittings, built-up mica, or a finished article, as classification boundaries with other headings in Chapter 68 can affect duty treatment. The diversity of end-use sectors — from electronics to personal care — means specification documentation is critical at entry.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Worked mica generally refers to mica that has been processed (split, ground, or shaped) but not yet assembled into a finished product, while articles of mica are completed goods made from mica as a primary material. The distinction matters because some intermediate forms may classify elsewhere in Chapter 68 or even Chapter 85 if they are specifically designed electrical components. Consulting a licensed customs broker is advisable when the product sits on the boundary between these forms.
Vietnam and China tend to supply high-volume, labor-intensive forms such as mica splittings and sheet products, while Austria, Germany, and the United Kingdom supply precision-engineered mica composites and specialty insulation articles for industrial and high-tech applications. This split reflects the material's dual role as both a commodity mineral and a performance-critical engineered input.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 6814900000 | MICA, WORKED AND ARTCLS NESOI | $1.5M | 18.04% | $271K |
MICA, WORKED AND ARTCLS NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 6814900000 | MICA, WORKED AND ARTCLS NESOI | $642K |
MICA, WORKED AND ARTCLS NESOI
28.3K kg
OTHR ARTS NESOI OF CMNT ETC
HS 681099
MARBLE, TRAVERTINE AND ALABASTER, WORKD, NESOI
HS 680291
WORDK MONUMENTAL OR BUILDING STONE, NESOI
HS 680299
GRANITE, NESOI
HS 680293
ABRASIVES ON A BASE MATERIAL OTH THN FABRC O PAPER
HS 680530
ARTICLES OF ASPHALT OR SIMILAR MATERIALS IN ROLLS
HS 680710
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $541K | $9K | -$533K |
| OAKLAND, CA | $357K | $43K | -$315K |
| JFK INTERNATIONAL AIRPORT, NY | $22K | $145K | +$123K |