Base
CompareChapter 84: Nuclear Reactors, Boilers, Machinery

HS 840400: 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

Duty rates across 5 jurisdictions · 1 temporarily unavailable · Updated daily

🇺🇸United States
Details →

MFN Rate

Code

840400

🇬🇧United Kingdom
Details →

MFN Rate

Code

8404000000

🇪🇺European Union
Details →

MFN Rate

Code

8404000000

🇨🇦Canada

Data temporarily unavailable

🇧🇷Brazil
Details →

MFN Rate

Code

840400

Sources: USITC, HMRC, DG TAXUD, SISCOMEX. MFN rates are the standard most-favoured-nation applied rate. Actual rates may differ based on origin, valuation, and trade programs.

Need deeper analysis?

Ask our AI to research HS 840400 across all sources — tariffs, rulings, regulations, and trade measures — in one conversation.

Join the Waitlist →