Trump Administration Supported by President Trump has stopped some critical products and technologies made only in the United States from flowing to China, flexing the government’s power over global supply chains. By Ana Swanson The Trump administration has suspended some sales to China of critical U.S. technologies, including those related to jet engines, semiconductors and certain chemicals. The move is a response to China’s recent restrictions on exports of critical minerals to the United States, a decision by Beijing that has threatened to cripple U.S. company supply chains, according to two people familiar with the matter. The new limits are pushing the world’s largest economies a step closer toward supply chain warfare, as Washington and Beijing try to flex their power over essential economic components in an attempt to gain the upper hand in an intensifying trade conflict. The standoff could have significant implications for companies that depend on foreign technologies, including makers of airplanes, robots cars and semiconductors. It could also complicate efforts to negotiate an end to a trade fight over the administration’s tariff policies. On May 12, negotiators from the two countries agreed to reduce the punishing tariffs they have imposed on each other for 90 days while negotiators sought a longer-term resolution. Scott Bessent, the Treasury secretary, said at the time that “the consensus from both delegations is that neither side wanted a decoupling.” Yet the administration continues to target China with punitive measures. Secretary of State Marco Rubio announced on Wednesday that the United States would “aggressively revoke” visas for Chinese students who study in critical fields or who connections to the Chinese Communist Party. Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times. Thank you for your patience while we verify access. Already a subscriber? Log in. Want all of The Times? Subscribe.