Athens International Airport (AIA) has raised €500 million through a seven-year senior unsecured bond issue, the company said Thursday, marking its first international bond offering since listing on the Athens Stock Exchange in 2024.

The proceeds will be used to refinance part of the airport operator’s existing bank debt, diversify funding sources and for other purposes, it said.

The offering attracted orders of more than €2.6 billion during the bookbuilding process, making it more than five times oversubscribed, according to the company.

AIA said the transaction was supported by its investment-grade credit ratings and broadens its access to international debt markets.

The operator, which manages Greece’s busiest airport, said the bond issue expands its investor base and represents a further step in its post-listing financing strategy.