HEADING 3504
Peptones and their derivatives; other protein substances and their derivatives, not elsewhere specified or included; hide powder, whether or not chromed:
Part of Chapter 35 — Albuminoidal Substances, Enzymes, Section VI.
Subheadings and tariff lines
Recent CBP rulings on heading 3504
N361287
May 29, 2026
The tariff classification, country of origin, and marking of ioPea Protein
N359602
March 27, 2026
The classification, country of origin, and marking of pea protein isolate
N358212
February 11, 2026
The tariff classification of LFX Synthetic Protein Isolate from China
N341903
April 22, 2025
The tariff classification of Mori’s Silk Sheet (MSS) from an undisclosed country
N347548
April 18, 2025
The tariff classification of Dry Mycoprotein from India
N346352
March 26, 2025
The tariff classification of Frozen Mycoprotein Paste from the United Kingdom
N343562
November 15, 2024
The tariff classification of Mycoprotein Paste from the United Kingdom
N339131
April 15, 2024
The tariff classification of Type II Collagen Powder (UC-II) from South Korea or other undisclosed countries
N335285
September 22, 2023
The tariff classification of mycoprotein paste from the United Kingdom
N301872
December 13, 2018
The tariff classification of “Bovine Collagen Gel and Powder” from Australia
N300350
September 21, 2018
The tariff classification of “Recombinant Human Vimentin Protein” from Israel
N297903
July 10, 2018
The tariff classification of two varieties of “Pea Protein Powder” from China
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