Trump expands metal tariff list

Donald Trump signed a proclamation on June 1 revising Section 232 tariffs on some steel, aluminum and copper imports, the White House said. The changes lower duties on some steel and aluminum derivative products, add new categories to the tariff list and set new conditions for reduced rates on some imported equipment. (usnews.com) The adjusted rates take effect at 12:01 a.m. EST on June 8 and will remain in place through Dec. 31, 2027, according to the White House. The proclamation updates tariff regimes that trace back to Section 232 national-security findings on aluminum and steel in 2018 and on copper in 2025. (usnews.com) In the June 1 proclamation, Trump said the changes were based on Commerce Department monitoring and recommendations about how the tariff structure was affecting domestic industries that use agricultural equipment, industrial equipment and related products. (federalregister.gov) ### Which products got lower tariffs, and which ones were added? The White House said certain agricultural machinery and residential heating, air conditioning and ventilation equipment will now face 15% tariffs instead of 25%. The administration also expanded the industrial equipment category eligible for a 15% tariff to include mobile industrial equipment such as bulldozers and forklifts when imported from trade-deal countries entitled to that treatment. (usnews.com) Reuters reported that the order adds two new categories of derivative imports subject to 25% duties: steel racks and aluminum lithographic plates. The same order allows some foreign companies to qualify for a 10% tariff if their capital equipment contains at least 85% U.S. melted-and-poured or smelted-and-cast steel or aluminum by weight. (whitehouse.gov) ### How does copper fit into this order? Copper was brought into the Section 232 framework in 2025, when Trump issued a separate proclamation after the Commerce secretary found copper imports threatened to impair U.S. national security. That 2025 finding said copper was the second most widely used material by the Department of Defense and described it as essential for defense systems and critical infrastructure. (usnews.com) The 2025 copper proclamation also required the Commerce secretary to provide Trump with an update on domestic copper markets by June 30, 2026, including refining capacity and the market for refined copper in the United States. Congress’s research service said that update could inform a decision on duties for refined copper. (usnews.com) ### Why has the copper market been watching June 30? A market report cited in the source briefing said the pending June 30 Commerce assessment had pushed Comex copper premiums above $500 a ton. Reuters’ June 1 report on the tariff proclamation did not give a copper price, but the White House fact sheet said new investment in U.S. copper mining, smelting and fabrication was underway and named Highland Copper, Ivanhoe Electric, Rio Tinto and Wieland among companies expanding U.S. facilities. (federalregister.gov) The White House said the tariff changes are meant to spur near-term investment and rebuild the industrial base. In its fact sheet, it said the temporary changes were designed to support agriculture, housing and manufacturing while maintaining the broader Section 232 program for strategic metals. (federalregister.gov) ### What does China’s July 1 rule change have to do with this? China said on June 1 that Premier Li Qiang had signed a State Council decree issuing a new outbound-investment regulation that takes effect on July 1, 2026. The regulation says it aims to protect investors’ rights while safeguarding national sovereignty, security and development interests, and it stresses stronger risk prevention and control for outbound investment. (whitehouse.gov) Bloomberg reported that the rule tightened oversight of outbound investment and reviews for overseas investments that could affect national security. That places China’s policy move on a similar calendar to the U.S. copper review deadline, with both governments updating rules that affect industrial and capital flows around strategic sectors. (whitehouse.gov) ### What happens next, and when? June 8 is the effective date for Trump’s latest tariff revisions on steel, aluminum and copper-related imports. June 30 is the deadline for the Commerce Department’s update on domestic copper markets, and July 1 is the start date for China’s new outbound-investment regulation signed by Li Qiang. (usnews.com) (bloomberg.com) (english.gov.cn)