Hong Kong International Airport (HKIA) announced that all three traffic categories saw steady growth in the first half of 2018. From January to June of this year, HKIA handled 36.9 million passengers and 2.5 million tonnes of cargo and airmail, representing increases of 3.4% and 3.5%, respectively, over the same period last year. Flight movements increased 2.3% to 211,285 year …