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HSChapter 25
U.S. imports of crude mica and mica splittings (HS 252510) totaled $64K in June 2026, traded with 3 countries.
Importers of Crude Mica and Mica Splittings paid $6K in duties in June 2026 — an effective duty rate of 10% on $64K in dutiable value, based on actual customs collections rather than the published tariff schedule.
Crude mica and mica rifted into sheets or splittings — the minimally processed forms of muscovite, phlogopite, and related minerals — serve as critical inputs for electrical insulation, electronics, cosmetics, and specialty coatings, where the mineral's natural cleavage into thin, flexible sheets is the defining commercial property. India is the dominant global supplier and leads US imports under this heading, with Japan and Brazil also contributing. The US tariff schedule subdivides this heading into split block mica (2525100010), mica splittings (2525100020), and other crude mica (2525100050), with the appropriate line determined by the degree of splitting and physical form.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Split block mica (2525100010) refers to blocks that have been cleaved but retain substantial thickness; mica splittings (2525100020) are very thin laminae produced by further hand- or machine-splitting, used in built-up mica insulation products; other crude mica (2525100050) covers unrifted or minimally processed mica not meeting the prior definitions. The physical form and thickness of the product, supported by supplier specification sheets, determines the correct 10-digit line.
Electrical and electronics manufacturers use mica splittings for capacitor dielectrics, motor commutator segments, and high-temperature insulation boards. Cosmetics producers use fine mica for pearlescent pigments, though that application typically uses ground mica (heading 2525.20) rather than crude forms. Specialty coatings and plastics compounders also consume crude mica as a functional filler for barrier and thermal properties.
Monthly import values over time
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| Country | Imports | Exports | Balance |
|---|---|---|---|
| INDIA | $64K | -- | -$64K |
| MEXICO | -- | $24K | +$24K |
| SINGAPORE | -- | -- | -- |
| COSTA RICA | -- | -- | -- |
| EL SALVADOR | -- | -- | -- |
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2525100020 | MICA SPLITTINGS | $61K | 10.00% | 100.00% | $6K |
| 2525100050 | MICA, NESOI | $3K | 10.00% | 100.00% | $250 |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2525100000 | CRUDE MICA AND MICA RIFTED INTO SHEETS OR SPLTTNGS | $24K |
PORTLAND CEMENT EXCEPT WHITE PORTLAND CEMENT
HS 252329
SULFUR OF ALL KINDS, NOT SUBLIMED,PRECIP,COLLOIDAL
HS 250300
SALT INCL TBL/DENTRD, PURE SODM CHLOR ETC; SEA WTR
HS 250100
FUSED MAGNESIA; DEAD-BURN MAGNESIA; MAGNESIA NESOI
HS 251990
FLUORSPAR OV 97% OF CALCIUM FLUORD BY WGHT
HS 252922
UNGRND NAT CAL PHSPH, ALUM CAL PHOS A PHOS CHALK
HS 251010
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEWARK, NJ | $61K | -- | -$61K |
| LAREDO, TX | -- | $24K | +$24K |
| NORFOLK-NEWPORT NEWS, VA | $2K | -- | -$2K |