TGI - Moody's warns of Triumph downgrade if MAX production doesn't resume in H1 January, 02 2020 02:49 PM Triumph Group Inc. Boeing 737 MAX supplier Triumph Group (TGI -1.6%) tumbles as Moody's placed its CCC rating of TGI's unsecured bonds on review for a possible downgrade.More news on: Triumph Group, Inc., Stocks on the move, Read more ...