The President AIBig tech Regulates an input
Adjusting Imports of Polysilicon and its Derivatives into the United States
MechanismPolysilicon is the feedstock the silicon wafers a semiconductor is cut from are grown from, and a proclamation setting the terms on which it enters the country sets the landed cost of that feedstock for every buyer downstream of it.
So whatA proclamation dated 2026-08-06 is Adjusting Imports of Polysilicon and its Derivatives into the United States, and terms set at the border apply to the importer of the material and to the importer of the products made from it alike.
Nothing to file
This document prints no comment window, no date it takes effect, and no scheduled week. There is no docket to file into and no date to diary.
Selection rule: Read against the sector rule from the White House feed. This proclamation is in the archive twice: here as signed on 2026-08-06, and again in the Federal Register on 2026-08-11, quoted separately on this page. Downstream keeps both rather than merging them. A document is identified by its own text, and the five days between the two dates are a fact about publication, not about the action.
The President Proclamation published 2026-08-06 whitehouse.gov ↗federalregister.gov ↗ also printed in the Federal Register
Post on X Post on LinkedIn Permalink
