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Potassium Bicarbonate Fire Suppression Powder

Fine powder of KHCO3 with inorganic fillers for Class B and C fire extinguishers, effective on flammable liquids and electrical fires. Wholly inorganic composition qualifies it for HTS 3813.00.10.00 as a prepared charge.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+37.5%37.5%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

2836.40Lower: 13.8% vs 37.5%

If imported as bulk chemical without fire-specific formulation

Pure potassium bicarbonate falls under inorganic salts of heading 2836

3813.00Same rate: 37.5%

If mixed with organic halogenated compounds

Organic fire extinguishing preparations use the other subheading

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.

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Import Tips & Compliance

• Confirm no organic flow agents; test for purity to meet subheading requirements

• Provide fire testing certifications like UL 299; avoid fines for unproven efficacy claims

• Package in moisture-proof bags; humidity degradation is a common import issue

Related Products under HTS 3813.00.10.00

ABC Dry Chemical Fire Extinguisher Powder

A mixture of monoammonium phosphate, ammonium sulfate, and silica-based flow agents used as a charge for ABC multi-class fire extinguishers. This preparation consists wholly of inorganic substances like phosphates, sulfates, and silicates, classifying it under HTS 3813.00.10.00 as a fire extinguisher charge.

Sodium Bicarbonate BC Dry Powder Charge

Prepared charge of NaHCO3 with inorganic extenders for BC-rated fire extinguishers targeting flammable liquids and energized equipment. Entirely inorganic, fitting HTS 3813.00.10.00 criteria.

Diammonium Phosphate Multipurpose Powder

(NH4)2HPO4 dry chemical mix for portable extinguishers, wholly inorganic for Class A/B/C fires. Prepared specifically as fire charge under HTS 3813.00.10.00.

Boron Compound Fire Suppressant Powder

Sodium borate and boric acid mixture for specialized magnesium fire extinguishers, entirely inorganic. Qualifies as fire charge preparation in HTS 3813.00.10.00.

Magnesium Fire Class D Extinguishing Powder

Sodium chloride-based powder with inorganic modifiers for combustible metal fires (Class D). Wholly inorganic preparation for HTS 3813.00.10.00.

Copper Powder Fire Extinguishing Charge

Fine copper metal powder with inorganic fluxes for specialized electrical fire suppression. Inorganic metallic preparation under HTS 3813.00.10.00.