Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3818.00.00.45Tariff 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
Pseudo-square or rectangular in shape, as described in statistical note 3 to this chapter
3818.00.00.45
Rates of duty
General rate (Column 1)Free
Special—
Column 225%
Unitkg
Printed page 1670
Measure flags
for origin CN, entry date 2026-10-26 · base rate Free
- Section 301 forced-labor tariff (12.5%)9903.05.86ExemptexemptOn the note 52(b) general exemption list (exempt by HTS line; enter under 9903.05.86)
- China 301 FYR-SEMI9903.91.05Applies+50%8-digit subheading 3818.00.00 is on FYR-SEMI
- 232 polysilicon & derivatives9903.45.30Scheduled+15%General (all other countries) | Monocrystalline silicon wafers, doped: pseudo-square or rectangular in shape, as described in statistical note 3 to chapter 38 of the HTSUS
Confirmed total 50% · max 50%Full duty breakdown →