KEY POINTS
  • Five more Chinese companies are banned from purchasing U.S.-made components.
  • The Commerce Department said the activities of these companies "pose a significant risk of being or becoming involved in activities contrary to the national security and foreign policy interests of the United States."
  • Shares of U.S. chipmakers came under pressure after the announcement.

The U.S. Commerce Department has banned five more Chinese entities from buying U.S. components after blacklisting telecom giant Huawei last month.

Higon, Chengdu Haiguang Integrated Circuit, Chengdu Haiguang Microelectronics Technology, Sugon and Wuxi Jiangnan Institute of Computing Technology are the five Chinese firms added to the department's entity list, according to a filing.