Bidders shortlisted for Sydney Metro Western Sydney Airport Line; Downer EDI Works secures contract for Southwest project, Australia March 1, 2021 | Asia Pacific Company News Sydney Metro has shortlisted three bidders to execute the tunnelling works of the Western Sydney Airport Line project. The bidders are Bouygues Construction Australia Pty Limited, John Holland Gamuda ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password