Nuvoton Technology manufactures microcontrollers, analog ICs, and power management solutions for industrial, automotive, and consumer applications. The company specializes in ARM Cortex-M based MCUs and mixed-signal semiconductor products.
Nuvoton Technology is headquartered in Taiwan, but most components are manufactured in Taiwan. For US customs purposes, the COO is where the component is manufactured — not where the company is based. Declaring Taiwan as COO when parts ship from Taiwan is a customs violation.
| Country | Sec 122 | Sec 301 | Total |
|---|---|---|---|
| 🇹🇼 Taiwan | 10% | — | 10% |
* Section 301 rates shown for electronics HTS chapters (8541–8542). Rates vary by product.
| HTS Code | Description |
|---|---|
| 8542.31.0025 | Microcontrollers |
| 8542.39.0001 | Microcontrollers |
| 8542.33.0001 | Microcontrollers |
For US importers, the country of origin (COO) of a Nuvoton Technology component determines which tariff layers apply at the border — not where Nuvoton Technology is headquartered. Under US customs law, COO is the country where the component was manufactured or substantially transformed, which is typically a fabrication or assembly facility rather than a corporate headquarters. Nuvoton Technology components manufactured in Taiwan carry an effective US import duty of 10%, reflecting the applicable MFN base rate plus any Section 301 or Section 122 surcharges in effect.
The total US import duty on Nuvoton Technology components is calculated as a stack of applicable tariff layers: (1) the MFN (most-favored-nation) base rate from the USITC HTS schedule — typically 0% for electronic components in HTS chapters 8541–8542; (2) Section 122 global surcharge of 10%, applicable to all countries since May 2025; (3) Section 301 China-specific surcharges of 50% for semiconductors and ICs (HTS 8541–8542) or 25% for passive components, applicable only to China-origin goods; and (4) Merchandise Processing Fee (MPF) of 0.3464% of customs value, with a minimum of $32.71 and maximum of $634.62 per entry. For Nuvoton Technology components manufactured in Taiwan, the combined effective rate is 10%. Electronics procurement teams should verify the specific COO at the lot or date-code level, as some manufacturers source from multiple facilities.
Correct HTS (Harmonized Tariff Schedule) classification is required for accurate duty calculation and CBP entry. Electronic components fall across several HTS chapters: integrated circuits (microcontrollers, memory, analog ICs) under HTS 8542; discrete semiconductors (diodes, transistors, MOSFETs) under HTS 8541; passive components including capacitors under HTS 8532, resistors under HTS 8533, and inductors under HTS 8504. Misclassification exposes importers to CBP penalties and potential back-duties. If you are unsure of the correct HTS code for a specific Nuvoton Technology part number, use TariffTracker's part number lookup to get a classification recommendation based on distributor and manufacturer data cross-referenced with the USITC tariff schedule.
Enter any Nuvoton Technology part number to get the COO, HTS code, and full duty calculation including MPF and HMF.
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