# HTS 9902.16.21: Lithium thionyl chloride (LTC) batteries, annular in shape, measuring 30.48 mm or more but not over 152.4 mm in length, with an outer diameter of 10.16 cm or more but not over 127 mm and an inner diameter of 55.88 mm or more but not over 88.9 mm, certified by the importer as containing a lithium anode and a liquid cathode comprising a porous carbon current collector filled with thionyl chloride (SOCl2) (provided for in subheading 8507.60.00)

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

## Duty rates

- **General (MFN) rate:** Free
- **Special / FTA rate:** No change
- **Column 2 rate:** No change
- **Corpus rank:** #5667 of 5979 among duty-free tariff lines

## Classification path

- **Section XXII:** [Special Classification Provisions](https://plaintariff.com/section/xxii-special-classification-provisions)
- **HTS code:** 9902.16.21

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*Source: U.S. International Trade Commission Harmonized Tariff Schedule. HTML canonical: https://plaintariff.com/heading/99021621-lithium-thionyl-chloride-ltc-batteries-annular-in-shape*