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Potassium Peroxide KO2

Potassium peroxide (KO2), also known as potassium superoxide, is used in oxygen generation systems like submarines and breathing apparatus. Classified in HTS 2815.30.00.00 as a peroxide of potassium, meeting chemical definition requirements of Chapter 28.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+37.5%41.2%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

2815.20.00Lower: 25% vs 41.2%

If actually potassium hydroxide

Caustic potash (KOH) is in adjacent subheading 2815.20; chemical composition determines heading.

2853.90Lower: 15.3% vs 41.2%

If other inorganic compounds like phosphides

Heading 2853 covers complex compounds like copper phosphide, not simple alkali peroxides.

3824.99Lower: 17.5% vs 41.2%

If in chemical preparations or mixtures

Mixed with organics or in preparations, shifts to Chapter 38 per Note 1 exclusions.

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

• Classify as DOT Hazard Class 5.1; require proper placarding and carrier certification for transport

• Provide assay reports showing >90% KO2 content to distinguish from mixtures excluded by chapter notes