Hong Kong airport expands Nine retail shops and a café have opened in the recently-inaugurated 105,000sq metre concourse at Hong Kong International Airport (HKIA).In addition to the new shops, there are also outposts and a money-exchange kiosk. ‘The Midfield Concourse will be able to serve an additional 10 million annual passengers to meet the increasing passenger volume at HKIA,’ says Airport Authority Hong Kong commercial executive director Cissy Chan.