2933.79Lactams
HTS Code 2933.79 covers any article best defined as Products of the Chemical or Allied IndustriesOrganic chemicalsHeterocyclic compounds with nitrogen hetero-atom(s) only:Lactams:Other lactams: in the Harmonized Tariff Schedule — covering 7 sub-classifications.
Tariff updates
Recent US tariff actions that name 2933.79 or its heading.
- Oct 16, 2026 · CBP guidanceCBP issues HSU 2625 with Section 232 pharmaceutical updates and CPSC flag changes
- Dec 18, 2025 · PublishedUS cuts reciprocal tariff on Swiss and Liechtenstein goods to 15% all-in, exempts certain products
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Relevant HTS Notes
Official USITC notes that may affect classification under HTS 2933.79.
Related CROSS Rulings for HTS 2933.79
CBP classification rulings related to 2933.79. Open a ruling to read how Customs classified a similar product.
No rulings found
No CROSS classification rulings were found for HTS code "2933.79".
What does HTS code 2933.79 cover?
HTS code 2933.79 covers lactams (Other lactams:), classified under Chapter 29 (Organic chemicals) in the US Harmonized Tariff Schedule. There are 7 more specific sub-classifications under this code.
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