Base
HTS 2836.40Chapter 28

HTS 2836.40Potassium carbonates: Duty Rate & Import Guide

Inorganic Chemicals · 1 pending regulation · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Data compiled from USITC HTS, CBP CROSS Rulings, Federal Register, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-30 · Updates daily

Active DisputesRecent court cases or pending regulations affect this code
Trade Remedy

Additional Tariffs Apply

Section 301 — China Tariffs+25%

List 2 — ~$16B of Chinese goods (semiconductors, chemicals, plastics)

Active — 7.5%–25% additional duties on Chinese-origin goods across four tranches (Lists 1–4A), with higher 2024/2025 increases on targeted product categories.

Effective 2018-07-06

These additional tariffs apply on top of the general duty rate. View full trade remedy tracker →

Subheadings (3)

CodeDescriptionRate
2836.40Potassium carbonates:
2836.40.10.00Dipotassium carbonate1.9%
2836.40.20.00Potassium hydrogencarbonate (Potassium bicarbonate)1.3%

CBP Rulings (1)

H301455Origin

Eligibility for preferential tariff treatment under the U.S. - Korea Free Trade Agreement

Federal Register (1)

Matching Export Code (Schedule B)

2836400000Schedule B

POTASSIUM CARBONATES

Census Bureau export classification matching this HTS import code.

2836.30.00.002836.40.10.00