2023, John Lee and the Executive Council authorised the Tung Chung Line Extension project. It is expected to commence construction in 2023, while the cost of the two new stations, Tung Chung East and Tung Chung West, are expected to cost HK$18.7 billion. The contract for the extension was recently awarded to British engineering companies Arup and Atkins. This extension is expected to be complete by 2029. Oyster Bay station Oyster Bay station, previously Siu Ho Wan station, is a planned infill station that will be situated in between Sunny Bay station and the future Tung Chung East station. It is expected to open with the Siu Ho Wan Depot Topside Property Development Package 1. The station will be part of the Tung Chung line. It is expected to open in 2030. Tuen Ma line extension Hung Shui Kiu station Hong Kong station track extension An underground tunnel, around 500 metres long, will be built eastwards of Hong Kong station for overrun tracks. This will allow Tung Chung line and Airport Express trains to turn around, allowing the trains to easily switch directions, enhancing the potential frequency of operation. The project is expected to extend the track length by an additional 1.5 kilometers. In March 2022, MTR announced the planning and design contract had been awarded to British consultancy firm Mott MacDonald. Proposals Line extensions and new stations Science Park/Pak Shek Kok station Science Park station is a proposed infill station along the East Rail line located between University and Tai Po Market stations. Tseung Kwan O Line Southern Extension In the Chief Executive's 2022 Policy Address, it was announced that the Tseung Kwan O line would be extended southwards to Tseung Kwan O Area 137, an 80 hectare plot of land the Development Bureau has identified suitable for the development of 50,000 new housing units. Area 137 is expected to take in new populations in 2030, but there has been no expected timeline for the completion of the extensions or the opening of the new station. New lines South Island line (West) On 21 January 2003, the Executive Council of Hong Kong granted MTR Corporation Limited permission to proceed with further planning on two proposed lines: West Island line and South Island line. These new lines were suggested in the Second Railway Development Study and the Railway Development Strategy 2014 report. to provide direct links between the residential areas