Polysilicon Import Adjustments & Anti-Stockpiling

Current understanding

To be populated as evidence accumulates.

2026-10-28 — Adjusting Imports of Wind Turbines and Their Parts and Components Into the United States: cross-connection with wind-turbine-import-adjustments: Both are presidential category-level import adjustments targeting clean-energy equipment supply chains. (novelty: 3)
2026-09-24 — Measures To Restrict Stockpiling of Polysilicon and Polysilicon Derivatives Under Proclamation 11052: Proclamation 11052 directs Commerce to monitor pre-December 4, 2026 polysilicon stockpiling, authorizing import bans on stockpilers, caps on newly registered importers’ shipments, and a waiver process (final rule). (novelty: 3)