Partners finalize 30-year concession for airport operation, rehabilitation and maintenance Tokyo, Nov 17, 2014 - - JALUX Inc. , Mitsubishi Corporation , and Myanmar's SPA affiliated group-company Yoma Development Group Limited, a wholly-owned subsidiary of Yoma Strategic Holdings Ltd. , have signed a concession agreement with Myanmar's Department of Civil Aviation for the concession to operate Mandalay International Airport for 30 years. Operations are scheduled to commence around March of 2015, based on the concession agreement concluded with DCA.