US Bans Export of Tech Used In 3nm Chip Production On Security Grounds

All four items are being classified under Section 1758 of the Export Control Reform Act, which covers the production of advanced semiconductors and gas turbine engines. Those types of technology are also covered by the Wassenaar Arrangement, made in 2013 between the US and 41 other countries, which functions as a broader arms control treaty. "We are protecting the four technologies identified in today's rule from nefarious end use by applying controls through a multilateral regime," Assistant Secretary of Commerce for Export Administration Thea D Rozman Kendler said in a statement. "This rule demonstrates our continued commitment to imposing export controls together with our international partners."

The reason for the addition of the four forms of technology to export controls is a change made in May to how the BIS characterizes emerging and foundational technologies. Under the change, such tech was reclassified to be covered by Section 1758. The BIS statement announcing the export ban made no mention of the countries, but recent events make it clear the target is China -- the US has been considering other tech export bans (and investment freezes), recently all of which appeared tailored to target China. Analysts in the Middle Kingdom have claimed the ban would have little short-term impact on China's chipmaking industry as no one in China has yet managed to design chips as advanced as those targeted by the ban.