2621Slag and ash
HTS Code 2621 covers any article best defined as Mineral ProductsOres, slag and ashOther slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste: in the Harmonized Tariff Schedule — covering 2 sub-classifications.
Tariff updates
Recent US tariff actions that name 2621 or its heading.
- 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 2621.
Related CROSS Rulings for HTS 2621
CBP classification rulings related to 2621. Open a ruling to read how Customs classified a similar product.
No rulings found
No CROSS classification rulings were found for HTS code "2621".
What does HTS code 2621 cover?
HTS code 2621 covers slag and ash (Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste:), classified under Chapter 26 (Ores, slag and ash) in the US Harmonized Tariff Schedule. There are 2 more specific sub-classifications under this code.
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