Hong Kong’s East Rail Line cross-harbour extension opens
https://www.railwaygazette.com/metros/hong-kongs-east-rail-line-cross-harbour-extension-opens/61624.article
It's obviously the historic extension for MTR. Though through trains from Mainland China won't run to Admiralty, former Kowloon - Canton Railway is connected with downtown of Hong Kong Island, meaning passengers going through Lo Wu checkpoint or Lok Ma Chau checkpoint can directly arrive at Admiralty without changing trains.
