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US tightens China chip curbs, pulls Samsung and SK Hynix approvals

The United States has moved to tighten chip rules in China, cancelling approvals that had let Samsung and SK Hynix obtain U.S. chipmaking gear for their China operations, according to a notice in the Federal Register. In 2022, the Commerce Department set broad export limits on U.S. chip equipment but granted carve-outs for some firms. […]