BEIJING—Japan’s industry ministry is backing a push by Mitsubishi Heavy Industries (MHI) to increase cooperation among the country’s aerostructure suppliers, a move the company likens to creating a new Airbus. Competitiveness in bidding for work in future aircraft programs is a reason to assemble the industry’s strengths, according to the Ministry of Economy, Trade and Industry. “The Japanese aviation industry aims to increase their presence in the ...