To stay in business in the face of Milch ensuring that he would get no government contracts, Messerschmitt had signed agreements with Romania for sales of the M35 and a transport plane, the Messerschmitt M 36.
For at holde sin forretning i gang på trods af at Milch sikrede sig at han ikke fik regeringskontrakter havde Messerschmitt underskrevet en kontrakt med Rumænien om salg af M 37 og et transportfly Messerschmitt M 36.