President Donald Trump on Friday signed a proclamation establishing a four-year tariff-rate quota on imports of quartz surface products, citing harm to the domestic industry from a surge in foreign shipments.
The action follows the U.S. International Trade Commission’s (ITC) conclusion that quartz surface products are being imported in high enough quantities as to be a substantial cause of serious injury to U.S. producers of like or directly competitive articles. The ITC launched the probe after a petition by the Quartz Manufacturing Alliance of America.
The ITC submitted its report to the president on May 18. A supplemental report from July 2 cited unforeseen developments that led to the import increase….