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HTS Code · Chapter 28 · Updated Oct 6, 2026

2815.20.00Potassium hydroxide (Caustic potash)

HTS Code 2815.20.00 covers any article best defined as Products of the Chemical or Allied IndustriesInorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopesSodium hydroxide (Caustic soda); potassium hydroxide (Caustic potash); peroxides of sodium or potassium:Potassium hydroxide (Caustic potash) in the Harmonized Tariff Schedule — covering 2 sub-classifications.

Estimated Duty on 2815.20.00

$10,000.00 by ocean, entered Oct 6, 2026

China
Total duty
$2,500.00
25% effective rate
Fees
$47.14
MPF + HMF
Duty + fees
$2,547.14
Payable to CBP
Landed cost
$12,547.14
On $10,000.00 customs value
  • Section 301 – China$2,500.0098.1%
  • Customs fees$47.141.9%

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Base Duty Rates for 2815.20.00

From the Harmonized Tariff Schedule

General Rate of Duty
Free
Special Rate of Duty
—
Column 2 (Non-NTR)
2.2¢/kg
Total duty by countryAll 20 →
  • China25%
  • Mexico0%
  • Canada0%
  • Vietnam0%
  • Germany0%
Tariffs by country · Oct 6, 2026

US Import Duty on HTS 2815.20.00 by Country of Origin

As of Oct 6, 2026, US imports of potassium hydroxide (Caustic potash) (HTS 2815.20.00) from China pay 25% in duties: a duty-free base rate plus Section 301 – China (25%). Of the 20 largest sources of US imports, the lowest total is 0%, from Mexico, Canada and 17 more.

Total duty from China
25%
Base rate plus 1 additional tariff
Lowest total duty
0%
From Mexico, Canada and 17 more
Countries with additional tariffs
1 of 20
Section 232, 301, 122 and other Chapter 99 duties
Country of originBase rateAdditional tariffsTotal duty
ChinaFree
  • Section 301 – China25%9903.88.03
25%
MexicoFreeNone0%
CanadaFreeNone0%
VietnamFreeNone0%
GermanyFreeNone0%
JapanFreeNone0%
South KoreaFreeNone0%
TaiwanFreeNone0%
IndiaFreeNone0%
IrelandFreeNone0%
ItalyFreeNone0%
SwitzerlandFreeNone0%
ThailandFreeNone0%
MalaysiaFreeNone0%
United KingdomFreeNone0%
FranceFreeNone0%
IndonesiaFreeNone0%
BrazilFreeNone0%
BangladeshFreeNone0%
CambodiaFreeNone0%

Duties on goods entered Oct 6, 2026 at the general rate (Column 2 where it applies), with tariff data verified through 2026 HTS Revision 20. Totals are before customs fees (MPF, HMF) and any antidumping or countervailing duties. Some tariffs and exemptions depend on details such as metal content or end use, which the calculator asks about.

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Legal notes

Relevant HTS Notes

Official USITC notes that may affect classification under HTS 2815.20.00.

Chapter 28 Notes (includes Section 6 Notes)Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
CBP rulings

Related CROSS Rulings for HTS 2815.20.00

CBP classification rulings related to 2815.20.00. Open a ruling to read how Customs classified a similar product.

No rulings found

No CROSS classification rulings were found for HTS code "2815.20.00".

Questions

HTS 2815.20.00 FAQ

Something else? Ask us.

What does HTS code 2815.20.00 cover?

HTS code 2815.20.00 covers potassium hydroxide (Caustic potash), classified under Chapter 28 (Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes) in the US Harmonized Tariff Schedule. The general duty rate is Free. There are 2 more specific sub-classifications under this code.

What is the duty rate for HTS 2815.20.00?

The general (Column 1) rate of duty for HTS 2815.20.00 is Free. The Column 2 rate, for countries without normal trade relations, is 2.2¢/kg. Additional Chapter 99 tariffs, such as Section 301 and Section 232, can apply on top depending on the country of origin.

What is the US tariff on potassium hydroxide (Caustic potash) (HTS 2815.20.00) from China?

As of Oct 6, 2026, US imports of potassium hydroxide (Caustic potash) (HTS 2815.20.00) from China pay 25% in duties: a duty-free base rate plus Section 301 – China (25%).

Which country has the lowest US duty on HTS 2815.20.00?

Of the 20 largest sources of US imports, the lowest total duty on HTS 2815.20.00 is 0%, from Mexico, Canada and 17 more, as of the tariffs in effect on 2026-10-06.

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