# HTS 2621: Other slag and ash, including seaweed ash (kelp); ash and residues from the incineration of municipal waste:

> Plain-language tariff reference from the USITC Harmonized Tariff Schedule on [PlainTariff](https://plaintariff.com/).

## Duty rates

- **General (MFN) rate:** Free

## Classification path

- **Section V:** [Mineral Products](https://plaintariff.com/section/v-mineral-products)
- **Chapter 26:** [Ores, slag and ash](https://plaintariff.com/chapter/chapter-26-ores-slag-and-ash)
- **HTS code:** 2621

## Related tools

- [Tariff calculator](https://plaintariff.com/tools/tariff-calculator)
- [Search HTS codes](https://plaintariff.com/search)
- [Methodology & sources](https://plaintariff.com/methodology)

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/2621-other-slag-and-ash-including-seaweed-ash-kelp-ash-and-re*