Harmonized System
U.S. exports of Silicon (99.99% or Greater Purity) (HS 280461) totaled $76.8M in August 2026.
Importers of Silicon (99.99% or Greater Purity) paid $17K in duties in August 2026, an average duty rate of 0.04% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Silicon (99.99% or Greater Purity) imports of $47.4M in August 2026 ran 287% above the year-to-date monthly average of $12.2M.
Last updated: August 2026 dataHigh-purity silicon containing at least 99.99% silicon by weight — classified under 2804610000 — is the foundational material for semiconductor wafers, solar cells, and advanced electronics, distinguishing it sharply from lower-grade metallurgical silicon. Malaysia and Germany are the leading US import sources under this heading, with Taiwan and Japan also significant, reflecting the concentration of semiconductor-grade silicon production in East and Southeast Asia and Europe. Because this grade sits at the intersection of semiconductor supply chains and solar energy manufacturing, it is closely watched for trade-remedy and export-control developments. Buyers should verify certificate-of-analysis purity data, as a shipment falling below the 99.99% threshold reclassifies to heading 280469.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
222 import shipments a month
The dividing line is 99.99% silicon content by weight. Silicon at or above that threshold falls under 280461 (2804610000); silicon below 99.99% — whether between 99% and 99.99% or below 99% — is classified under heading 280469. A certificate of analysis confirming purity is essential documentation at entry.
Malaysia hosts major downstream semiconductor and solar wafer manufacturing facilities that generate high-purity silicon as both a product and a by-product, while Germany is home to established specialty chemical and polysilicon producers serving European and global electronics supply chains. Both countries have invested heavily in the refining infrastructure needed to reach the 99.99% threshold.
Trade Directory
List your company under HS 280461 — Silicon (99.99% or Greater Purity), so the companies trading it can find you. Be the first supplier listed.
Subheading 1 of 11 in heading 2804
Subheading 280461 · $76.8M of $175.9M
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 |
|---|---|---|---|---|---|
| 2804610000 | Silicon Contain by Wt Nt Lt 99.99% of Silicon | $47.4M | 0.04% | 0.07% | $17K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2804610000 | Silicon Contain by Wt Nt Lt 99.99% of Silicon | $76.8M |
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
$47.4MYoY · free account
Exports
$76.8MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $162.6M of Silicon (99.99% or Greater Purity) and exported $1.1B.
Through August 2026. Source: U.S. Census Bureau.
Exports · August 2026
destination
Japan and China together take 69% of it.
customs district
origin
entry
rate provision · imports
99.9% enters free of duty; duty collected equals 0.04% of imports for consumption.