The United States has extended its 'entity list' to China's leading companies in the field of cybersecurity and AI. A total of 33 Chinese companies and institutions were included in the list. These include Beijing Computational Science Research Center, Qihoo 360, CloudWalk Technology and other technology companies/organizations. 1) Chinese companies or institutions listed on the 'US Entities List' will not be able to have any commercial transactions with the US. It is worth noting that Zhu Jiejin, ranked 24th, is a professor at Fudan University in Shanghai. US Secretary of Commerce Ross said in a statement that these companies and individuals may be related to weapons of mass destruction (WMD) and military. 2) So far, the United States has listed Chinese companies on the so-called "entity list" three times, plus the previous Huawei, Dahua, Hikvision, iFlytek, Megvii, Sense Time, Meiya Pico, Yitu and other companies, China has 33 research institutions, enterprises and individuals included in the list.