Gammon Construction
The MTR Corporation let out a tender for the construction of the Sai Ying Pun and HKU stations and of tunnel. In 2009, the design and architecture was awarded to Aedas in joint venture with AECOM. The construction work was awarded to Gammon Construction, (half owned by Balfour Beatty) for 4.7 billion HK dollars. Construction commenced in 2010 and was completed in 2014.