Beijing has vowed a response after the U.S. Department of Defense added more Chinese firms to a military-linked blacklist, citing national security.

Beijing has warned of a resolute response to the Pentagon’s newly expanded blacklist of Chinese companies, accusing Washington of using national security as a pretext to curb the development of Chinese firms. The warning came after the US Defence Department released its updated Section 1260H list on Monday as required by American law, expanding the roster to 188 entities, up from 134 last year. The list names what the department says are “Chinese military companies” operating, directly or...