Base
HTS 3818.00.00.20Chapter 38

HTS 3818.00.00.20Polycrystalline silicon wafers, doped Duty Rate & Import Guide

Miscellaneous Chemical Products · $125.8M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Units: kg

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Monthly Imports

$125.8M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

LOW

0 rulings — · 0 reg · 0 cases

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: N/A · 🇧🇷 Brazil: 2 NCM codes

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Data compiled from USITC HTS, US Census Bureau, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

High-Volume Code

This is a high-volume import code — $126M in monthly US imports. Duty rate changes or trade remedy actions on this code have significant economic impact.

Subheadings (1)

CodeDescriptionRate
3818.00.00.20Polycrystalline silicon wafers, doped

Matching Export Code (Schedule B)

3818000000Schedule B

CHEMICAL ELEMENTS DOPED FOR USE IN ELECTRONICS, IN THE FORM OF DISCS WAFERS OR SIMILAR FORMS; CHEMICAL COMPOUNDS DOPED FOR USE IN ELECTRONICS

Census Bureau export classification matching this HTS import code.

3818.00.00.103818.00.00.30