(Bloomberg) — The U.S. Commerce Deparmtment announced it’s blacklisting Semiconductor Manufacturing International Corp. and more than 60 other Chinese companies “to protect U.S. national security.”“This action stems from China’s military-civil fusion doctrine and evidence of activities between SMIC and entities of concern in the Chinese military industrial complex,” the Commerce Department said in a statement.Commerce Secretary Wilbur Ross confirmed the move in a Friday morning interview with Fox Business. It was reported first by Reuters overnight. Shares in China’s top chipmaker slid 5.2% Friday in Hong Kong on the news.Other affected Chinese entities include those “that enable human rights abuses, entities that supported the militarization and unlawful maritime claims in the South China Sea, entities that acquired U.S.-origin items in support of the People’s Liberation Army’s programs, and entities and persons that engaged in the theft of U.S. trade secrets,” according to the U.S. government statement.The majority of the newly banned companies are Chinese and will join the likes of Huawei Technologies Co. on a list that denies them access to U.S. technology from software to circuitry.Companies including Huawei and SMIC have been caught in the middle of worsening tensions between the world’s two largest economies, which have clashed on issues from trade to the pandemic.Presdeint Donald Trump had been widely expected to level more sanctions against China’s national champions before Joe Biden formally took office.“If the report you mentioned is correct, it will be another example of how the U.S. is using its national power to crack down on Chinese companies,” Chinese Foreign Ministry spokesman Wang Wenbin said at a briefing in Beijing on Friday. “We urge the U.S. to stop its wrongful activities cracking down on foreign companies.”The Shanghai-based company, a supplier to Qualcomm Inc. and Broadcom Inc., lies at the heart of Beijing’s intention to build a world-class semiconductor industry and wean itself off a reliance on American technology. Washington in turn views China’s ascendancy and its ambitions to dominate spheres of technology as a potential geopolitical threat. A blacklisting threatens to cripple its longer-term ambitions by depriving it of crucial gear.In response to the widening U.S. crackdown, China is planning to provide broad support for so-called third-generation semiconductors in its next five-year plan to increase domestic self-sufficiency in chip manufacturing, people with knowledge of the matter have said. SMIC, backed by the China Integrated Circuit Industry Investment Fund as well as Singapore’s sovereign fund GIC Pte and the Abu Dhabi Investment Authority, is expected to play a central role in that overall effort.SMIC representatives didn’t respond to requests for comment. The company had already been laboring under similar, less severe curbs after the Commerce Department in September placed it on a separate export restrictions list, accusing SMIC of supplying the military. Those sanctions took a toll on shares of the company, whose co-CEO Liang Mong Song this week unexpectedly resigned, triggering another selloff.Read more: China’s Top Chipmaker Slides After Co-CEO Abruptly QuitsFor more articles like this, please visit us at bloomberg.comSubscribe now to stay ahead with the most trusted business news source.©2020 Bloomberg L.P.