Controllers (including microcontrollers)
8542.31.0030 · imported from China
The rates in this summary are the full program rates as the calculator computes them; one or more may not apply to your shipment — the conditions are noted below.
Imports from China carry a combined tariff of approximately 50% — the MFN base rate is Free, and the Section 301 (sector) rate of 50% applies under the 2024 four-year review modifications, effective January 2025. This rate supersedes rather than stacks on any earlier Section 301 List rate for these semiconductor codes. On a $1,000 shipment, that works out to roughly $500 in estimated duties.
AI-generated explanation — an estimate, not a compliance determination.
| Component | Amount |
|---|---|
| MFN base rate | $0.00 |
| Section 301 (sector) | $500.00 |
| Merchandise Processing Feeminimum fee applies — 0.3464% of this value is below the $33.58 floor | $33.58 |
| Harbor Maintenance Fee | $1.25 |
| Total duties & fees | $534.83 |
Rates as of 2026-07-11 · base rate & classification from the USITC HTS; the §301/§232/§122 rates from USTR & Presidential proclamations
Estimates only — not legal or customs advice.
The Section 301 rate shown is the full List rate. Active USTR product exclusions may reduce or remove it for specific products — check the USTR exclusion portal and confirm with a licensed customs broker.
What else affects this line
Recent changes
No rate changes have been recorded for this chapter recently — this tariff has been stable.