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HTS 3818.00.00 duty rate

Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms;…. General duty Free; for goods of Chinese origin, general + Section 301 (+50%) comes to 50% before any other duties.

FreeGeneral (MFN) duty rate
Four-year review +50%Section 301, products of China
50%General + Section 301 for China, ad valorem
25%Column 2 (Cuba, North Korea, Russia, Belarus)

Official USITC Harmonized Tariff Schedule, 2026HTSRev20 · data built 2026-10-02 · check on hts.usitc.gov

Tariff line3818.00.00
DescriptionChemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
General rateFree
Special rate (trade programs)none listed
Column 2 rate25%
Units of quantitysee statistical lines
Section 301 (China)Four-year review +50%
FootnotesSee 9903.90.08.

Section 301 China tariffs on this line

Chapter 99 headingListExtra dutyStatus
9903.91.05Four-year review (note 31)+50%in effect from January 1, 2025

Statistical reporting numbers (10-digit)

Report the 10-digit number on the entry; the duty rate is the one above.

CodeDescription
3818.00.00.10Gallium arsenide wafers, doped
3818.00.00.20Polycrystalline silicon wafers, doped
3818.00.00.30Silicon carbide wafers, doped
3818.00.00.40Round (circular) shaped, as described in statistical note 2 to this chapter
3818.00.00.45Pseudo-square or rectangular in shape, as described in statistical note 3 to this chapter
3818.00.00.50Other
3818.00.00.91Other

2026 US–China tariff reduction lists: The US–China reduction lists are not published yet. Dutyfinch checks the Federal Register every day and flags each code as soon as the list appears.

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Nearby tariff lines

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← 3817.00.20 · 3819.00.00 → · Heading 3818 · Chapter 38 · Chapter 38 rate summary

General information from the official US Harmonized Tariff Schedule (USITC) and Federal Register; not legal or customs advice. Section 232, IEEPA, antidumping/countervailing and other duties can also apply. Confirm classification and rates with CBP or a licensed customs broker before you file.