MediumV Technology Geopolitics & AI9 October 2026, Friday
US trade commission probes 20 firms over AI server power modules
On 9 October the US International Trade Commission (USITC) opened a Section 337 investigation under the Tariff Act into vertical power delivery systems used in AI servers. It covers 20 companies from Taiwan, China, Germany and the United States.
According to Focus Taiwan on 11 October, the complaint was filed on 9 September by Vicor, a Massachusetts-based power technology company, which submitted a supplement on 10 September. Vicor alleges that the products infringe its patents when imported into and sold in the United States. The Taipei Times lists Taiwan's Hon Hai, Delta Electronics, Quanta Computer and Foxconn Industrial Internet among the respondents, along with China's Luxshare Precision. Taiwan's International Trade Administration, part of the economy ministry, says the power technology in question is used in AI servers.
Vicor is seeking a limited exclusion order, which would stop infringing products at US customs, together with a cease-and-desist order on sales. Section 337 cases typically run 12–16 months, and the commission will set a target completion date within 45 days of 9 October. Any ruling takes effect immediately and becomes final after 60 days unless the US Trade Representative objects on policy grounds. The USITC stressed that as of 9 October it had made no decision on the merits.
Taiwan's economy ministry described the case as a private patent dispute and pledged to support the companies if needed. Delta said on 11 October that its products are not currently affected. Neither source carries responses from the other companies or the patent numbers at issue as of 12 October; those details could not be verified.
Talay assessment
Bottom line
Alongside export controls, a second border gate is opening: patent litigation that can end in an import ban at customs. The case targets Taiwanese assemblers directly, and a verdict is 12–16 months away. The likeliest path is that shipments continue in the near term and the case closes through licensing or settlement. Even so, the prospect of an exclusion order adds a legal uncertainty premium to the AI server supply chain.
Likely effects
- Taiwanese server assemblyNegative1–6 months
For assemblers such as Hon Hai, Quanta and Delta, access to the US market hinges on a single patent ruling, and customers will ask for alternative power module designs.
- Power semiconductorsUncertain6 months+
The risk of an exclusion order hands the patent holder leverage in licensing talks, and royalties could be added to the cost of power modules.
- US–China tech decouplingNegative1–6 months
Luxshare's inclusion shows that Chinese suppliers beyond the reach of export controls can still be squeezed on the import side.
Possibilities, ranked
- 1Drawn-out case ends in settlement55%
Shipments continue and some companies exit the case through licensing deals.
Watch: The target completion date the USITC sets within 45 days, and notices of companies withdrawing from the case
- 2Limited exclusion order30%
The commission finds infringement, some products are barred from the US, and assemblers redesign.
Watch: The judge's initial determination and the 60-day review by the Trade Representative
- 3No infringement found15%
The commission rejects the complaint and the supply chain uncertainty lifts.
Watch: An initial determination finding no infringement
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- Companies under investigation▼ 20
- Typical investigation length▼ 12–16 months