# USITC Investigates Magnet Wire Imports

The U.S. International Trade Commission instituted Section 337 investigation 337-TA-1527 into allegations that imported extrusion-coated magnet wire infringes patents held by Essex Solutions Inc. and Essex Solutions USA LLC. The investigation is not a finding of infringement. The USITC will set a target completion date within 45 days of institution; any remedial orders issued would become final after 60 days unless the U.S. Trade Representative disapproves them.

- Importers, manufacturers, and government buyers sourcing extrusion-coated magnet wire should assess whether their supply chains include products or respondents covered by the investigation.
- The named complainants are Essex Solutions Inc. and Essex Solutions USA LLC; respondents include Wellascent Electronic (Ganzhou) Co., Ltd. and Wellascent Technologies USA LLC.
- The investigation could affect the availability of covered imports if the USITC issues remedial orders. Procurement teams may wish to identify alternative sources for this material where supply continuity is important.

**Jurisdictions:** federal
**Topics:** Regulatory Compliance
**Published:** October 30, 2026

### Government Entities
- U.S. International Trade Commission (USITC)
- Office of the United States Trade Representative (USTR)

### Vendors
- Essex Solutions Inc. (complainant)
- Essex Solutions USA LLC (complainant)
- Wellascent Electronic (Ganzhou) Co., Ltd. (respondent)
- Wellascent Technologies USA LLC (respondent)

### Sources
- [USITC Institutes Section 337 Investigation of Certain Extrusion-Coated Magnet Wire | United States International Trade Commission](https://www.usitc.gov/press_room/news_release/2026/er1029_69436.htm) - Usitc