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HSChapter 38
U.S. exports of graphite-based preparations (nesoi) (HS 380190) totaled $3.5M in July 2026.
Importers of Graphite-Based Preparations (NESOI) paid $196K in duties in July 2026 — an effective duty rate of 16% on $1.3M in dutiable value, based on actual customs collections rather than the published tariff schedule. Graphite-Based Preparations (NESOI) imports of $2.7M in July 2026 ran 21% below the year-to-date monthly average of $3.4M.
Last updated: July 2026 dataGraphite preparations not elsewhere specified under heading 3801 include a commercially significant subset: active anode materials containing silicon (3801900010), which are next-generation battery anode compounds blending graphite with silicon to increase energy density in lithium-ion cells. South Korea leads US supply under this heading, consistent with that country's major role in battery materials manufacturing, with Indonesia and China also among top sources. Imports from China may be subject to Section 301 tariffs, and the silicon-containing anode line (3801900010) is particularly relevant to EV battery supply-chain compliance reviews. Importers should distinguish these preparations from colloidal graphite (3801.20) and from pure artificial graphite (3801.10) to ensure correct classification.
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97 shipments/mo
This line covers composite materials in which graphite serves as the primary matrix and silicon (in elemental or compound form) is incorporated to enhance lithium-ion storage capacity, specifically intended for use as the active anode layer in battery cells. Products must be characterized as anode-active materials — not merely graphite with incidental silicon contamination — to fall under 3801900010 rather than the general NESOI line 3801900050.
South Korea is a US free-trade-agreement partner under KORUS, so qualifying originating graphite preparations may be eligible for preferential tariff rates. Importers must confirm KORUS rules-of-origin compliance and provide a valid certificate or certification of origin at entry to claim the preference.
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Subheading 2 of 4 in heading 3801
Subheading 380190 · $2.7M of $60.3M
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 |
|---|---|---|---|---|---|
| 3801900050 | Preparations Based on Graphite, NESOI | $2.1M | 5.57% | 34.55% | $116K |
| 3801900010 | Graphite Preps,Active Anode Material Cont Silicon | $611K | 13.03% | 88.21% | $80K |
| 3801900000 | Preparations Based on Graphite, NESOI | $0 | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 3801900000 | Preparations Based on Graphite, NESOI | $3.5M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$2.7MYoY · Pro
Exports
$3.5MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Mexico and Canada together take 58% of it.
customs district
origin
entry
rate provision · imports
42.4% enters free of duty; the effective duty rate is 7.27%.