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SMR Small Modular Nuclear Reactor

Small Modular Reactors (SMRs) are factory-built reactors under 300 MWe with integral designs. Classified as complete nuclear reactors under HTS 8401.10.00.00.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.3%+37.5%40.8%
🇲🇽Mexico3.3%+10.0%13.3%
🇨🇦Canada3.3%+10.0%13.3%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8401.40.00.00Lower: 40% vs 40.8%

If imported as reactor modules/parts

Incomplete SMR modules may be parts rather than full reactors.

8501.32Lower: 27% vs 40.8%

If low-power SMRs under specific generating set limits

Very small output SMRs could classify as electric generators.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Benefit from modular design for containerized import clearance

• Include factory acceptance test protocols and pre-assembly certifications

• Watch for reclassification risks as 'parts' during multi-module shipments