The additional orders come after the Air Force selected Anduril and General Atomics Aeronautical Systems Inc. (GA-ASI) for CCA Increment 1 prototypes in April.
MHI has begun developing collaborative combat aircraft which it hopes to mass produce by leveraging Mitsubishi's strong automobile industrial capability.
Left out of the first round of the Collaborative Combat Aircraft program, Lockheed Martin is now looking at cheaper, less capable designs for the next round.