HTS 2934.10.70.00: US import duty from China

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure, Other, 4,5-Dichloro-2-<i>n</i>-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-<i>n</i>-Octyl-4-isothiazolin-3-one; and Thiothiamine hydrochloride. Here is the full China to US duty stack and what it costs to land.

Duty rate & fees

ChargeRate
Base duty (MFN)0%
Total duty (on customs value)0%
Merchandise Processing Fee (MPF)0.3464% (min $33.58, max $651.50)
Harbor Maintenance Fee (HMF), ocean0.125%

Worked example: $10,000 shipment

Customs value$10,000.00
Base duty (MFN)$0.00
Merchandise Processing Fee$34.64
Harbor Maintenance Fee$12.50
Total landed cost$10,047.14

Excludes freight and insurance. Run your exact numbers in the calculator →

FAQ

What is the import duty on HTS 2934.10.70.00 from China?

Goods classified under HTS 2934.10.70.00 (Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure, Other, 4,5-Dichloro-2-<i>n</i>-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-<i>n</i>-Octyl-4-isothiazolin-3-one; and Thiothiamine hydrochloride) have a duty of 0% of the customs value on the China to US lane (base rate plus any Section 301 tariff), plus the Merchandise Processing Fee (0.3464%, min $33.58, max $651.50) and, for ocean shipments, the Harbor Maintenance Fee (0.125%).

What does HTS code 2934.10.70.00 cover?

Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds, Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure, Other, 4,5-Dichloro-2-<i>n</i>-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-<i>n</i>-Octyl-4-isothiazolin-3-one; and Thiothiamine hydrochloride. US Customs and Border Protection determines the final classification at entry.

How much does it cost to import HTS 2934.10.70.00 from China?

On a $10,000 shipment, the estimated total landed cost is $10,047, about 0.5% in duty and fees. Use the calculator for your exact value, quantity, and shipping mode.

Related codes in heading 2934

All of Chapter 29: Organic chemicals

Estimates for planning only. Final classification and duty are determined by U.S. Customs and Border Protection at entry. Rates from USITC HTSUS 2026-06-15-cn-us. The IEEPA reciprocal tariff was struck down (SCOTUS, 2026-02-20) and is excluded. Not legal or customs-broker advice.