Tariffs fade, supply battle rises

Washington is moving from taxing Chinese goods at the border to controlling the parts, chips, machines, and shipping networks that move through the supply chain. (usnews.com) (bis.gov) President Donald Trump returned to office in 2025 promising tariffs would reset the relationship with Beijing, but Reuters reported on April 21 that the tariff push has not fundamentally changed China’s trade or military behavior. Reuters also said officials and analysts now describe a policy that has swung between crackdowns and carveouts, including a military blacklist that was withdrawn and a decision to allow some artificial intelligence chip sales to China. (usnews.com) (bis.gov) That change is already visible in the rulebook. The Bureau of Industry and Security said on January 13, 2026 that licenses for Nvidia H200, AMD MI325X, and similar chips for China would be reviewed case by case, after tightening other semiconductor controls in late 2025. (bis.gov 1) (bis.gov 2) Tariffs are taxes on finished imports; supply-chain controls target the choke points upstream, where one machine tool, one software package, or one advanced chip can hold up an entire factory line. That is why the next fight centers less on customs rates and more on access to semiconductors, manufacturing equipment, logistics data, and shipping capacity. (bis.gov) (semafor.com) Semafor reported on April 21 that the contest is shifting toward industrial dependence, with pressure points in components and networks that Asian manufacturers rely on every day. That makes the risk less about a higher sticker price on imports and more about delayed production, rerouted sourcing, and shortages of critical inputs. (semafor.com) The tariff front has also cooled in formal policy. The White House said on May 12, 2025 that the United States and China agreed to reduce tariffs, and the Office of the United States Trade Representative later extended 178 Section 301 exclusions through November 10, 2026. (whitehouse.gov) (ustr.gov) At the same time, Washington has opened new cases aimed at sectors where China holds scale advantages. The United States Trade Representative announced Section 301 action on April 17, 2025 over China’s maritime, logistics, and shipbuilding sectors, then suspended part of that action for one year in November 2025. (ustr.gov 1) (ustr.gov 2) Critics told Reuters the mixed signals have made U.S. policy harder to read ahead of Trump’s planned May 14-15, 2026 trip to China, which the White House announced in March. White House spokesperson Kush Desai told Reuters that Trump’s trade agenda had “flipped the script” on decades of failed policy and put the United States in a stronger position. (usnews.com) (politico.com) For companies in Taiwan, South Korea, Japan, Vietnam, Malaysia, and coastal China, the practical question is no longer just what tariff applies at the port. It is whether the needed chip, tool, software update, export license, or shipping slot is still available when production is supposed to start. (bis.gov) (semafor.com) The old trade war was measured in duty rates. The next phase is being measured in bottlenecks. (usnews.com) (semafor.com)