Harmonized System
U.S. imports of Graphite-Based Preparations (NESOI) (HS 380190) totaled $5.1M in August 2026, imported from 26 countries.
Importers of Graphite-Based Preparations (NESOI) paid $448K in duties in August 2026, an average duty rate of 8.36% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Graphite-Based Preparations (NESOI) imports of $5.1M in August 2026 ran 41% above the year-to-date monthly average of $3.6M.
Last updated: August 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.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
121 import shipments a month
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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HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 3801900050 | Preparations Based on Graphite, NESOI | $4.7M | 7.31% | 57.39% | $342K |
| 3801900010 | Graphite Preps, Active Anode Material Cont Silicon | $668K | 15.72% | 100.00% | $105K |
| 3801900000 | Preparations Based on Graphite, NESOI | — | -- | -- | -- |
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 | $3.4M |
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.
Subheading 2 of 4 in heading 3801
Subheading 380190 · $5.1M of $55.2M
ImportsExports
Imports
$5.1MYoY · free account
Exports
$3.4MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $38.1M of Graphite-Based Preparations (NESOI) and exported $36.7M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Indonesia and Mexico together supply 55% of it. Indonesia pays 14.9% duty; Mexico 0.0%.
customs district
destination
entry
rate provision · imports
38.9% enters free of duty; duty collected equals 8.36% of imports for consumption.