# 840420 — Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economisers, superheaters, soot removers, gas recoverers); condensers for steam or other vapour power units: Condensers for steam or other vapour power units

HS code 840420 classifies Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economisers, superheaters, soot removers, gas recoverers); condensers for steam or other vapour power units: Condensers for steam or other vapour power units. It belongs to Chapter 84 (Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof) of Section XVI (Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles) of the Harmonized System. Duty rates are recorded for 1 country.

> Section XVI · Machinery and mechanical appliances; electrical equipment; parts thereof; sound recorders and reproducers, television image and sound recorders and reproducers, and parts and accessories of such articles
> Chapter 84 · Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

**HS code:** `840420`

## Description

Auxiliary plant for use with boilers of heading 8402 or 8403 (for example, economisers, superheaters, soot removers, gas recoverers); condensers for steam or other vapour power units : Condensers for steam or other vapour power units

## Duty rates

| Country | Rate | Programme | Effective from |
| --- | --- | --- | --- |
| US United States | 5% | MFN | 2026-01-01 |

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Source: https://eximagent.ai/hscode/84/840420
Last updated: 2026-06-03
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