 In 2012, a Boeing representative confirmed that Boeing Phantom Works used to explore exotic forms of space propulsion, including Shawyer's drive, but such work later ceased.They confirmed that "Phantom Works is not working with Mr. Shawyer," nor pursuing those explorations.In 2013 and 2014, Shawyer presented ideas for 'second-generation' EmDrive designs and applications at the annual International Astronautical Congress.