by the MTR will be developed into an area with residential, office and retail space. Two of Hong Kong's largest banks, HSBC and the Bank of China are to have office towers there. Furthermore, will be more than 7,000 housing units in the development. The MTR also owns several shopping centres, as well as the International Finance Centre . Shopping centres The MTR Corporation invested heavily to develop large shopping centres around MTR stations. The most recent example is the PopCorn mall located at Tseung Kwan O station. It is connected to the adjacent malls, high-end housing and hotels. Another example of such a shopping centre is Maritime Square () located at Tsing Yi station. Maritime Square is a nautical-themed mall in which there are supermarkets, boutiques, bookstores, a cinema, and restaurants. Since Tsing Yi station serves as the transport hub for Tsing Yi, Maritime Square is also easily accessible by other transport means including buses and taxis. Other shopping centres developed and managed by the corporation include CityLink, Elements, Hanford Plaza, Ocean Walk, Paradise Mall, Plaza Ascot, Sun Tuen Mun Shopping Centre, Telford Plaza, The Lane, the LOHAS, and Luk Yeung Galleria. United Kingdom Current operations Elizabeth line: In May 2015, TfL Rail began an eight-year contract to operate the Crossrail concession in London, with an option for a further two years. Before the new railway lines opened, MTR already operated Liverpool Street–Shenfield and Paddington–Heathrow Airport services branded as TfL Rail. In May 2022 services commenced between Paddington and Abbey Wood via Liverpool Street, and all services were renamed Elizabeth line. South Western Railway: In August 2017, South Western Railway, in which MTR has a 30% shareholding in a joint venture with FirstGroup, began operating the South Western franchise. Former operations London Overground: MTR and Laing Rail established a 50/50 joint venture (MTR Laing) to bid for the London Overground concession. MTR Laing won the bid and trading as London Overground Rail Operations operated the concession from November 2007. After Laing Rail and Arriva UK Trains were brought under the same ownership of Deutsche Bahn in 2007 and 2010 respectively, Arriva took over the Laing Rail's share of the concession. In June 2015, MTR was shortlisted to bid for the next London Overground concession in its own right, but lost out to its partner Arriva. Arriva Rail London took over full operation in November 2016. Unsuccessful or withdrawn bids