en.Wedoany.com Reported - On June 1, U.S. President Donald Trump signed a document, citing Section 232 of the Trade Expansion Act of 1962, announcing a temporary reduction in tariffs on certain imported steel, aluminum, and copper products. According to a statement from the White House, the ad valorem tariff on imports of agricultural machinery such as harvesters has been reduced from 25% to 15%. Meanwhile, the White House lowered the threshold for the domestic content ratio required to deem imported products as "wholly" using U.S.-produced metals from 95% to 85%. The adjusted tariff measures will take effect on June 8 and remain temporarily in force until December 31, 2027, after which the current tariff rates will be reinstated starting January 1, 2028.
According to the document and fact sheet released by the White House, this adjustment expands the category of industrial machinery eligible for the 15% ad valorem import tariff, adding mobile industrial equipment such as bulldozers and forklifts. For products from eligible trade agreement countries, such equipment imported from these countries can enjoy a preferential tariff rate of 15%. At the same time, the White House encourages foreign companies to use more U.S.-produced steel and aluminum, stipulating that if capital equipment contains, by weight, at least 85% steel or aluminum that is melted and poured or melted and cast in the United States, the relevant products may be subject to a 10% ad valorem import tariff.
Additionally, the latest announcement adds aluminum lithographic printing plates and steel racks to the list of steel and aluminum derivative products, subject to a 25% ad valorem import tariff. For products from Canada and Mexico that qualify for preferential tariff treatment under the United States-Mexico-Canada Agreement (USMCA), the 25% tariff applies only to the value of non-U.S. content in the product, but the effective actual tariff rate shall not be less than 15%.
Trump had previously imposed tariffs on imported steel and aluminum during his first presidential term. After being re-elected as president in 2025, Trump adjusted steel and aluminum policies and introduced copper tariffs. On April 2, 2026, the White House issued a statement, adjusting the ad valorem tariffs on imported steel, aluminum, copper, and related derivative products effective April 6, establishing a three-tier tariff framework of 50% (for primary metal products), 25% (for most derivative products), and 15% (for temporary preferential categories). The White House stated that this further adjustment is based on monitoring and recommendations from the U.S. Secretary of Commerce, aiming to balance national security objectives with the operational realities of downstream industries such as agriculture and manufacturing.
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