Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3818.00.00.40Tariff line
Classification path
Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
3818
Monocrystalline silicon wafers, doped
Round (circular) shaped, as described in statistical note 2 to this chapter
3818.00.00.40
Rates of duty
- General rate (Column 1)
- Free
- Special
- —
- Column 2
- 25%
- Unit
- kg
- Printed page
- 1670
Measure flagsfor origin CN
- Section 301 China, FYR-SEMI9903.91.05 · 50%
- Section 301 forced labor: on an exemption list9903.05.86 · note 52(b)
- Section 232 (POLYSILICON)9903.45.30 · 15% · Annex I (ii) Polysilicon ingots and wafers - $100/kg — Monocrystalline silicon wafers, doped: round (circular) shaped, as described in statistical note 2 to chapter 38 of the HTSUS · from 2026-12-04