Washington asks for a cut of Korean chipmakers' 'excess profits': the tariff frame goes profit-side

In plain terms

Korea Times reports (via a single unnamed source) that the US is seeking a share of what it calls Korean chipmakers' "excess profits" as part of ongoing trade talks. If confirmed, this shifts US-Korea chip diplomacy from tariff-and-tax to profit sharing - a new frame.

Context

Samsung Electronics and SK Hynix are among the world's most profitable chipmakers, driven by HBM and DRAM demand from AI accelerators. Both operate US fabs and packaging (Samsung Taylor, TX; SK Hynix packaging in Indiana) under CHIPS Act support. The KORUS FTA, existing tariffs, CHIPS Act obligations and now this reported ask are converging in the same negotiation.

The data

Per Korea Times (Jul 16, 2026), citing one anonymous source, US negotiators have proposed capturing part of the surplus profits Korean chipmakers derive from US-market AI sales. No dollar figure, mechanism or legal basis is public. The reporting frames the ask as parallel to earlier US discussions with Taiwan.

Analysis

The construct - "excess profits share" - has echoes of European wartime windfall taxes, but here applied cross-border to allied private firms. The plausible legal vehicle would be a CHIPS Act upside-sharing clawback, not a bilateral tax. What the source claim signals is direction, not final rule: Washington is willing to challenge Korean corporates on where the AI surplus lands. Seoul can't ignore this without risking US-side access preferences.

Scenarios

Base case: negotiation resolves as a modified CHIPS Act clawback rate - a technocratic compromise, unwelcome but survivable, priced into FY27 guidance rather than FY26. Bear: Korean firms model the "excess profits" ask into US-fab NPV and slow further US expansion. Bull: fast resolution, some public dispute, no material change to plant plans.

So what

Investors positioning in SK Hynix and Samsung on HBM tailwinds should discount for US-side policy risk. This is not a scenario currently priced by the sell-side, and any confirmation past a single anonymous source moves it from tail-risk to base case fast.