[SMM Analysis]On 15 August 2025 the U.S. Department of Commerce announced that 407 additional derivative products containing steel or aluminum will be brought under the scope of Section 232 tariffs. The measure takes effect at 12:01 p.m. Eastern Time on 18 August 2025. According to the notice, whenever these goods enter the United States—whether as in-transit shipments or already-held inventories—the steel or aluminum content will be subject to a 50 percent ad-valorem tariff, and no exemptions may be requested.