Frozen

HTS code 0309.90.50 covers frozen flours, meals, and pellets of molluscs, fit for human consumption. This code is used to classify these specific seafood products, and generally benefits from free duty treatment with standard trade partners or eligible preference programs, as positioned within Chapter 3 of the Harmonized Tariff Schedule.

Detailed information for HTS Code 0309.90.50

This section of the Harmonized Tariff Schedule covers fish, crustaceans, molluscs, and other aquatic invertebrates prepared as food. Specifically, code 0309.90.50 details flours, meals, and pellets of these aquatic invertebrates that *are* fit for human consumption and are frozen, specifically those made of molluscs. This code has two subdivisions: 0309.90.50.30 for conch and 0309.90.50.90 for all other frozen molluscan flours, meals and pellets; use the appropriate suffix to specify the exact product being reported.

Chapter	Chapter 3 - Fish and crustaceans, molluscs and other aquatic invertebrates
Section	Section I - Live Animals; Animal Products

Duty snapshot

Quick reference for the duty outcomes tied to this HTS line.

General Duty

Free

Standard trade partners (NTR)

Special Duty

N/A

Eligible FTA or preference programs

The general duty rate for HTS code 0309.90.50 and its subdivisions (0309.90.50.30 and 0309.90.50.90) is Free, applying to standard trade partners (NTR). Special rates are not specified, but eligibility for Free Trade Agreement (FTA) or preference programs may offer reduced or zero duty rates. All imports under this code and its subdivisions must be reported in kilograms (kg). Therefore, while the base rate is free for most imports, specific countries or programs could qualify for even more favorable treatment.

Rate of Duty (Column 2): Free

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Code subdivisions

0309.90.50.30

Flours, meals and pellets of fish, crustaceans, molluscs and other aquatic invertebrates, fit for human consumption: > Other: > Of molluscs: > Frozen > Conch

0309.90.50.90

Flours, meals and pellets of fish, crustaceans, molluscs and other aquatic invertebrates, fit for human consumption: > Other: > Of molluscs: > Frozen > Other

View HTS reference

Chapter & section notes

Chapter notes

Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes CHAPTER 3 FISH AND CRUSTACEANS, MOLLUSCS AND OTHER AQUATIC INVERTEBRATES I 3-1 Note 1. This chapter does not cover: (a) Mammals of heading 0106; (b) Meat of mammals of heading 0106 (heading 0208 or 0210); (c) Fish (including livers, roes and milt thereof) or crustaceans, molluscs or other aquatic invertebrates, dead and unfit or unsuitable for human consumption by reason of either their species or their condition (chapter 5); flours, meals or pellets of fish or of crustaceans, molluscs or other aquatic invertebrates, unfit for human consumption (heading 2301); or (d) Caviar or caviar substitutes prepared from fish eggs (heading 1604). 2. In this chapter the term "pellets" means products which have been agglomerated either directly by compression or by the addition of a small quantity of binder. 3. Headings 0305 to 0308 do not cover flours, meals and pellets, fit for human consumption (heading 0309). Additional U.S. Note 1. Certain fish, crustaceans, molluscs and other aquatic invertebrates are provided for in chapter 98. Statistical Note 1. Imports of shrimp or products of shrimp are subject to the provisions of section 609 of Public Law 101-162 of November 21, 1989 (16 U.S.C. 1537 note). Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes I 3-2

Section notes

SECTION I LIVE ANIMALS; ANIMAL PRODUCTS I-1 Notes 1. Any reference in this section to a particular genus or species of an animal, except where the context otherwise requires, includes a reference to the young of that genus or species. 2. Except where the context otherwise requires, throughout the tariff schedule any reference to "dried" products also covers products which have been dehydrated, evaporated or freeze-dried. Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes I-2 Harmonized Tariff Schedule of the United States Revision 29 (2025) Annotated for Statistical Reporting Purposes

Latest update

Last updated

November 15, 2025

Revised every January & July

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