USTR Extends Comment Deadline, Administration Action on Quartz Surface Products Import Injury

USTR issued a notice on June 9, 2026 extending the deadline for written responses to initial-round comments regarding the Administration's action following an import injury determination for Quartz Surface Products (QSP). This is a procedural step in the trade remedy comment process and imposes no new trade restriction. Stakeholders with views on the proposed action have additional time to submit responsive comments.