8542.39
Battery management ICs (BMS ICs, HTS 8542.39) include fuel gauges, cell protectors, balancers, and multi-cell managers for Li-ion/LFP batteries. TI (Malaysia) and ADI (Malaysia/Ireland) BMS ICs face 10%. China-origin BMS ICs face 60%. With EV and energy storage growth, BMS ICs are high-volume; the duty differential strongly incentivizes non-China sourcing.
| HTS Code | Description | Rate |
|---|---|---|
| 8542.39.0001 | Li-ion BMS ICs (coulomb counters, protectors) | 10% |
| 8542.39.0001 | Battery fuel gauge ICs | 60% |
| 8542.39.0001 | EV battery management ICs | 10% |
Rates shown for non-China origin. China adds Section 301 surcharges (7.5%–50% depending on HTS code) for most electronics.
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