3507.90.70.10

Enzymes – proteases, amylases, lipases, cellulases, pectinases, oxidases, and catalases

Enzymes; prepared enzymes not elsewhere specified or included: Other: Other

Unit: kg Heading: 3507 Chapter: 35 As of August 15, 2026

Data provenance: Rates from HTS Revision 16 (Aug 15, 2026); trade measures verified against CBP CSMS and Federal Register notices through Aug 15, 2026.

Duty rates

No active duty rates published for this code.

The rates above are statutory column rates. Trade remedies in Chapter 99 (Section 301, 232, IEEPA, reciprocal) and FTA preferences can change the duty owed on a given entry — see below.

Trade measures (Chapter 99)

9903.90.08

35%

Active

Articles the product of the Russian Federation, as provided for in U.S. note 30(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 30(b) to this subchapter

Applies to origin: RU, BY

Effective from April 5, 2025

Rate-change history

What the rate was before, and when it changed. The government schedule replaces each revision in place; we keep the timeline.

  1. NEW_PROGRAM Executive Order Feb 1, 2026 — Reciprocal Tariff (FR 2026-03824)

    Section 122 reciprocal surcharge in effect — additional 10% on most imports through July 24, 2026

    See the change →

Related CBP rulings

N346628 April 1, 2025

The tariff classification of powdered bromelain from India

Additional information was submitted by email dated March 18, and March 27, 2025. The product under consideration is powdered bromelain consisting of 90 percent bromelain powder and 10 percent maltodextrin (as a carrier). The product is pro

N336109 November 8, 2023

The tariff classification of an enzyme preparation from New Zealand

Additional information was provided via email on November 7, 2023. Aloxsyn® Embryo is an enzyme preparation consisting of an active ingredient Aloxsyn® (allene oxide synthase, enzyme) in a liquid mix of trehalose (cryoprotectant), sodium ch

N313623 August 25, 2020

The tariff classification of MuLV Reverse Transcriptase, MuLV Reverse Transcriptase Plus, Super Reverse Transcriptase MuLV, Super Reverse Transcriptase MuLV (Super RT 50 reaction kit), and RNase Inhibitor from India

Additional information was provided via email on August 12, August 13, and August 24, 2020. The five products under consideration are identified as (1) MuLV (Murine Leukemia Virus) Reverse Transcriptase, (2) MuLV Reverse Transcriptase Plus

N313622 August 14, 2020

The tariff classifications of DNA polymerase sets and a pre-mixture from India.

Additional information was provided via email on August 10, 2020. The five products under consideration are identified as Taq DNA Polymerase, Taq DNA Polymerase KIT, Taq DNA Polymerase Pre-Mix, Pfu DNA Polymerase, and Pfu Plus DNA Polymeras

N305133 November 15, 2019

The tariff classification of various chemical compounds from China

We apologize for the delay as the information was sent to our laboratory for analysis. You indicated all of the following items are used for research at laboratories and universities. Below are the descriptions you provided on the following

N305503 August 7, 2019

The tariff classification of Alpha Amylase (CAS # 9000-90-2) from China

The product is identified in your request as Alpha Amylase (CAS # 9000-90-2). It is also known by the commercial name BAA-300. It is a dark brown color liquid used to liquefy starch in a variety of industrial applications.

N298052 June 27, 2018

The tariff classification of Various Chemical Compounds from China

You requested a binding tariff classification ruling on the following five products. You indicate they are all used for research at laboratories and universities. You provided the following information on the five items under review. Item 1

N297147 May 29, 2018

The tariff classification of Various Chemical Compounds from China and Switzerland

In your letter dated May 18, 2018, you requested a tariff classification ruling. You requested a binding Tariff classification ruling on the following five products. You indicate they are all used for research at laboratories and universiti

N285940 June 2, 2017

The tariff classification of “Amino Acids, CAS No. 65072-01-7” from China

Co. LLC, on “Amino Acids, CAS No. 65072-01-7.” In your submission,

N279258 October 13, 2016

The tariff classification and country of origin for R1 (Salicylate-SL NADH Reagent) and R2 (Salicylate-SL Enzyme Reagent)

The tariff classification and country of origin for R1 (Salicylate-SL NADH Reagent) and R2 (Salicylate-SL Enzyme Reagent)

N257529 December 22, 2014

The tariff classification of enzyme preparations imported in bulk from Germany

We apologize for the delay as the information was sent to our laboratory for anlaysis. The first product called R1, consists of N-Tris(hydroxymethyl)methyl-3-aminopropanesulfonic acid (TAPS) buffer, creatinase, sacrosine oxidase, ascorbate

N258021 December 22, 2014

The tariff classification of chemical reagents imported in bulk from Germany

We apologize for the delay as the information submitted was sent to our laboratory for analysis. The first product, R1, consists of N, N-bis(2-hydroxyethyl) glycine (Bicine) buffer, colipase (porcine pancreas), a detergent and a preservativ

Other codes in heading 3507

View all codes in heading 3507 →

Duty by origin country

The rate above is the statutory base. Total landed duty depends on origin — see the calculated rate for 3507.90.70.10 from each major US trading partner.

Follow 3507.90.70.10

Get an email when a new CBP ruling cites this code, a ruling on it is revoked, or its tariff measures change.

One email per day at most. Confirm your address once, unsubscribe anytime.

Need to defend this classification?

Get the full 10-digit classification with GRI reasoning for your product, backed by cited CBP rulings and an audit trail for reasonable care.