# HTS 3808.99.30.00: Formulated biocides based on 2-methyl-4-isothiazolin-3-one, or 2-n-octyl-4-isothiazolin-3-one, or 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one, or mixtures of 5-chloro-2-methyl-4- isothiazolin-3-one and 2-methyl-4- isothiazolin-3-one; and Metaldehyde

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

## Duty rates

- **General (MFN) rate:** Free
- **Column 2 rate:** 25%
- **Corpus rank:** #1299 of 5979 among duty-free tariff lines

## Classification path

- **Section VI:** [Products of the Chemical or Allied Industries](https://plaintariff.com/section/vi-products-of-the-chemical-or-allied-industries)
- **Chapter 38:** [Miscellaneous chemical products](https://plaintariff.com/chapter/chapter-38-miscellaneous-chemical-products)
- **HTS code:** 3808.99.30.00

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/3808993000-formulated-biocides-based-on-2-methyl-4-isothiazolin-3-one*