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HTS 2918.13Chapter 29

HTS 2918.13Salts and esters of tartaric acid: Duty Rate & Import Guide

Organic Chemicals · $1.0M monthly imports · 100% from 1 countries · Updated daily from USITC

Duty Rates

General

Free

Special

Free

Column 2

Free

Trade Agreement Eligibility

CUSMAKORUS

Trade Intelligence

Monthly Imports

$1.0M

2026-01

Trade Concentration

100%

from top 3 of 1 origins

Regulatory Pressure

LOW

2 rulings — · 0 reg · 0 cases

Global Rates

🇺🇸 Free

🇬🇧 United Kingdom: N/A · 🇪🇺 European Union: N/A · 🇨🇦 Canada: Free · 🇧🇷 Brazil: 2 NCM codes

Compare All →

Data compiled from USITC HTS, US Census Bureau, CBP CROSS Rulings, HMRC / DG TAXUD / CBSA / SISCOMEX · As of 2026-04-28 · Updates monthly

Supply Chain Risk

100% of US imports for this code come from just 1 countries. High origin concentration increases exposure to trade disruptions or tariff escalations.

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 (5)

CodeDescriptionRate
2918.13Salts and esters of tartaric acid:
2918.13.10.00Potassium antimony tartrate (Tartar emetic)Free
2918.13.20.00Potassium bitartrate (Cream of tartar)Free
2918.13.30.00Potassium sodium tartrate (Rochelle salts)Free
2918.13.50.00Other4.4%

CBP Rulings (2)

964378CLASSIFICATION

HQ 964378: (-)-Dibenzoyl-L-tartaric acid anhydrous, CAS #2743-38-6 and Dibenzoyl-D-tartaric acid, CAS #1706-42-5; and HQ 960536: (+)-DI-O-P-Toluoyl-D-Tartaric Acid, CAS #32634-68-7

964585CLASSIFICATION

(+)-DI-P-Toluoyl-D-Tartaric Acid, CAS #32634-68-7

Matching Export Code (Schedule B)

2918130000Schedule B

SALTS AND ESTERS OF TARTARIC ACID

Census Bureau export classification matching this HTS import code.

2918.12.00.002918.13.10.00