The Terminal 1 (T1) Annex Building and Carpark 4 Expansion Project will expand the existing T1 at the Hong Kong International Airport, including the construction of a seven-storey reinforced concrete structure with steel truss roof with associated new check-in counters, baggage reclaim carousels, departure security screening channels, and departure immigration counters.
Works on the Carpark 4 facilities expansion include the delivery of an 11-storey reinforced concrete structure connecting to the existing Carpark 4 and T1 arrivals ramp.