# HS code 3818.00: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics

> HS code 3818.00 covers chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics. It sits in heading 38.18 (chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics) in chapter 38 (miscellaneous chemical products). It is the only subheading of heading 38.18, so every good of the heading is classified here. National tariff lines under 3818.00 are live on border.bot for the United States (7 lines, also used by 1 other country).

Source: https://border.bot/hs-codes/381800
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 38](https://border.bot/hs-codes/38) / [38.18](https://border.bot/hs-codes/3818) / [3818.00](https://border.bot/hs-codes/381800)

## Key facts

- HS code: 3818.00
- Covers: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
- Heading: [38.18: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics](https://border.bot/hs-codes/3818)
- Chapter: [38: Miscellaneous chemical products](https://border.bot/hs-codes/38)
- Edition: HS2022
- Duty in the United States: [See its 7 lines](https://border.bot/countries/united-states/hs-codes/381800)

## What this code covers

HS code 3818.00 covers chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics.

The legal text of the subheading is “Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics”, in HS2022.

## What it doesn’t cover

It is the only subheading of heading 38.18, so every good of the heading is classified here.

## How it is structured

3818.00 is a six-digit subheading. Its first two digits, 38, are the chapter; the first four, 3818, are heading 38.18; the last two, 00, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 38: Miscellaneous chemical products
- Heading 38.18: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics
- Subheading 3818.00: Chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics

## In other countries

National tariff lines under 3818.00 are live on border.bot for the United States (7 lines, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/381800): 7 lines, used by 1 other country

- Previous subheading: [3817.00](https://border.bot/hs-codes/381700) Mixed alkylbenzenes and mixed alkylnaphthalenes, other than those of heading 27.07 or 29.02
- Next subheading: [3819.00](https://border.bot/hs-codes/381900) Hydraulic brake fluids and other prepared liquids for hydraulic transmission, not containing or containing less than 70 % by weight of petroleum oils or oils obtained from bituminous minerals

## Frequently asked questions

### What does HS code 3818.00 cover?

HS code 3818.00 covers chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics.

### Which heading and chapter is HS code 3818.00 in?

HS code 3818.00 is in heading 38.18 (chemical elements doped for use in electronics, in the form of discs, wafers or similar forms; chemical compounds doped for use in electronics) in chapter 38 (miscellaneous chemical products).

### Where are goods of heading 38.18 classified when 3818.00 doesn’t fit?

3818.00 is the only subheading of heading 38.18, so every good of the heading is classified there.

### Which countries’ tariffs list national lines under HS code 3818.00?

National tariff lines under 3818.00 are live on border.bot for the United States (7 lines, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://border.bot/hs-codes/381800.json