Seoul's Incheon International Airport will undergo refurbishment in preparation for an economic summit this year and the arrival of Korean Air's (KAL) first Airbus A380.
The airport plans to reinforce two of its three runways by 2011's first half, says Incheon.
Both runways have been in use for 10 years, and reinforcement works will be done on the runways' top layer, it adds.
The airport's passenger terminals will also be refurbished and lounges expanded, says Incheon.
Seoul is hosting the G-20 Summit in November.
The airport also plans to install dedicated A380 aerobridges, it says. KAL expects to receive its first A380 in 2011's second quarter.