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HTS 3818.00.00Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics

What that translates to:Doped elements (discs, wafers) and doped compounds for electronics

Also written 38180000. Rates as CBP is collecting them today. Updated Oct 1, 2026.

Doped elements (discs, wafers) and doped compounds for… (HTS 3818.00.00) from China owe 50% in total duties as of Oct 1, 2026: no regular duty plus a 50% 2024 China tariff increases (Section 301).

Total duty rate50%That's $5,000 on a $10,000 shipment.
2024 China tariff increasesSection 301, since Jan 1, 202550%
Regular dutyBase rate (MFN) in the tariff scheduleFree
Total duty50%
No forced-labor tariff on this product: it's on the tariff's exemption list (HTS 9903.05.86).
Sources: USITC Harmonized Tariff Schedule, Revision 20 (2026); USTR, Notice of Action: China's Acts, Policies, and Practices Related to Targeting of the Semiconductor Industry for Dominance (note 31(f)(ii), p. 60850), 90 FR 60848, Dec 29, 2025; HTS 9903.91.05.

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Official description

Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics

Legal text from the Harmonized Tariff Schedule, Revision 20 (2026), chapter 38: Miscellaneous chemical products.

Statistical lines

The 10-digit numbers used on entry paperwork. They share this code's duty rates.

  • 3818.00.0010 (3818000010)Gallium arsenide wafers, doped · reported in kg
  • 3818.00.0020 (3818000020)Polycrystalline silicon wafers, doped · reported in kg
  • 3818.00.0030 (3818000030)Silicon carbide wafers, doped · reported in kg
  • 3818.00.0040 (3818000040)Round (circular) shaped, as described in statistical note 2 to this chapter · reported in kg
  • 3818.00.0045 (3818000045)Pseudo-square or rectangular in shape, as described in statistical note 3 to this chapter · reported in kg
  • 3818.00.0050 (3818000050)Other · reported in kg
  • 3818.00.0091 (3818000091)Other · reported in kg

What changed for this code

Questions about HTS 3818.00.00

What is the duty rate for HTS 3818.00.00?

The regular (column 1 general) rate printed in the tariff schedule is Free. Goods from China owe 50% in total as of Oct 1, 2026, including any additional tariffs. Additional tariffs depend on the country of origin; choose one above to see its full rate.

Is HTS 3818.00.00 subject to Section 301 tariffs?

Yes, for goods from 2 countries and territories as of Oct 1, 2026: China, Nicaragua. Choose a country above to see the rate and any exemptions.

Is HTS 3818.00.00 subject to Section 232 tariffs?

No Section 232 tariff applies to HTS 3818.00.00 as of Oct 1, 2026, from any country of origin.

HTSLookup shows the duties CBP collects on this code by country of origin. Antidumping or countervailing duties may also apply to some exporters; they're set per company and aren't shown.