HS Code 2934.99.4400

Aromatic or Modified Aromatic — US Import Duty

Official Description

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: > Other: > Other: > Aromatic or modified aromatic: > Other: > Other: > Other

Hierarchy: Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds > Other > Other > Aromatic or modified aromatic > Other > Other > Other

US Duty Rates (2026 HTS)

General Rate (MFN)6.5%

Unit of MeasureKG

Special Trade Program Rates

FreeA+, AU, BH, CL, CO, D, E, IL, JO, K, KR, MA, OM, P, PA, PE, S, SG — see HTS General Notes for eligible countries

Possible Additional Duties

Section 301 Brazil TariffThe duty provided in the applicable subheading + 25% (origin: BR)
Section 301 "Forced Labor" AlgeriaThe duty provided in the applicable subheading + 12.5% (origin: DZ)
Section 301 "Forced Labor" AngolaThe duty provided in the applicable subheading + 12.5% (origin: AO)
Section 301 "Forced Labor" ArgentinaThe duty provided in the applicable subheading + 10% (origin: AR)
Section 301 "Forced Labor" AustraliaThe duty provided in the applicable subheading + 12.5% (origin: AU)
Section 301 "Forced Labor" BahamasThe duty provided in the applicable subheading + 12.5% (origin: BS)

Applicability depends on country of origin and date of entry. Run the calculator for the full duty stack.

Classification

Chapter: Chapter 29 — Organic Chemicals
Heading: 2934 — Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds

Related Codes in this Heading

2934.10.1000

Products described in additional U.S. note 3 to section VI

2934.10.2000

Aromatic or modified aromatic

2934.10.7000

4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one; Ethyl 2-(2-aminothiazol-4-yl)-2- hydroxyiminoacetate; Ethyl 2-(2-aminothiazol-4-yl)-2- methoxyiminoacetate; 2-Methyl-4-isothiazolin- 3-one; 2-n-Octyl-4-isothiazolin-3-one; and Thiothiamine hydrochloride

2934.10.9000

Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure

2934.20.0500

N-tert-Butyl-2-benzothiazolesulfenamide

Common Questions

What is the US import duty for HS Code 2934.99.4400?

The general (MFN) duty rate for HS Code 2934.99.4400 (Aromatic or modified aromatic) is 6.5%. Preferential rates apply under 1 special trade program for eligible countries of origin. Use the calculator for an exact landed-cost estimate.

Are there additional tariffs on HS Code 2934.99.4400?

Yes — Chapter 99 measures may apply, including Section 301 Brazil Tariff, Section 301 "Forced Labor" Algeria, Section 301 "Forced Labor" Angola, among others. Applicability depends on the country of origin and entry date.

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