# United States tariff line 2934.30.43.00: Products described in additional U.S. note 3 to section VI

> In the United States tariff, line 2934.30.43.00 covers compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, products described in additional U.S. note 3 to section VI. The general (MFN) duty rate is 6.5%. It falls under HS subheading 2934.30 in heading 29.34 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2934304300
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2934.30](https://border.bot/countries/united-states/hs-codes/293430) / [2934.30.43.00](https://border.bot/countries/united-states/hs-codes/2934304300)

## Key facts

- Tariff line: 2934.30.43.00
- Covers: Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, products described in additional U.S. note 3 to section VI
- Duty (MFN): 6.5%
- Preferential rates: From free (17 programmes or origins)
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2934.30](https://border.bot/hs-codes/293430)

## What this line covers

In the United States tariff, line 2934.30.43.00 covers compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, products described in additional U.S. note 3 to section VI.

Its legal text is “Products described in additional U.S. note 3 to section VI”, read under “Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused”, “Other” and “Other”.

## How it is structured

It falls under HS subheading 2934.30 in heading 29.34 (chapter 29). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 29: Organic chemicals
- Heading 29.34: Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds
- Subheading 2934.30: Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused
- Within the subheading: Other
- Within the subheading: Other
- Line 2934.30.43.00: Products described in additional U.S. note 3 to section VI

## Duty

The general (MFN) duty rate is 6.5%.

Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A+).

- Free: a group of origins (origin group A+) (A+)
- Free: United States-Australia Free Trade Agreement (AU)
- Free: United States-Bahrain Free Trade Agreement Implementation Act (BH)
- Free: United States-Chile Free Trade Agreement (CL)
- Free: United States-Colombia Trade Promotion Agreement Implementation Act (CO)
- Free: African Growth and Opportunity Act (D)
- Free: Caribbean Basin Economic Recovery Act (E)
- Free: United States-Israel Free Trade Area (IL)
- Free: United States-Jordan Free Trade Area Implementation Act (JO)
- Free: United States-Korea Free Trade Agreement Implementation Act (KR)
- Free: United States-Morocco Free Trade Agreement Implementation Act (MA)
- Free: United States-Oman Free Trade Agreement Implementation Act (OM)
- Free: Dominican Republic-Central America-United States Free Trade Agreement (P)
- Free: United States-Panama Trade Promotion Agreement Implementation Act (PA)
- Free: United States-Peru Trade Promotion Agreement Implementation Act (PE)
- Free: United States-Mexico-Canada Agreement (S)
- Free: United States-Singapore Free Trade Agreement (SG)

## In other countries

No other national tariff on border.bot has live lines under 2934.30 yet.

- [The Harmonized System text for 2934.30](https://border.bot/hs-codes/293430)

## Other lines under 2934.30

- [2934.30.12.00](https://border.bot/countries/united-states/hs-codes/2934301200) 2-(Trifluoromethyl)phenothiazine
- [2934.30.18.00](https://border.bot/countries/united-states/hs-codes/2934301800) Ethyl (1H-phenothiazin-2,4,1)carbamate
- [2934.30.23.00](https://border.bot/countries/united-states/hs-codes/2934302300) Antidepressants, tranquilizers and other psychotherapeutic agents
- [2934.30.27.00](https://border.bot/countries/united-states/hs-codes/2934302700) Other
- [2934.30.50.00](https://border.bot/countries/united-states/hs-codes/2934305000) Other

- Previous line: [2934.30.27.00](https://border.bot/countries/united-states/hs-codes/2934302700) Other
- Next line: [2934.30.50.00](https://border.bot/countries/united-states/hs-codes/2934305000) Other

## Frequently asked questions

### What does tariff line 2934.30.43.00 cover in the United States tariff?

In the United States tariff, line 2934.30.43.00 covers compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, products described in additional U.S. note 3 to section VI.

### What is the general (MFN) duty on 2934.30.43.00 in the United States?

The general (MFN) duty rate is 6.5%.

### Which preferential rates apply to 2934.30.43.00?

Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A+).

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/2934304300.json