FRANKFURT (Reuters) - German builder Hochtief
The unit has holdings in airports in Athens, Budapest, Duesseldorf, Hamburg, Sydney and Tirana, said Hochtief, which is controlled by Spain's ACS
It added that it expects no significant extraordinary earnings impact from the transaction, which will take retroactive effect from January 1 this year.
Sources told Reuters in April that Hochtief received bids for its airport unit.
Hochtief halted the sale early last year when it was unable to fetch a price of 1.5 billion euros ($2 billion), but revived its efforts later.
Hochtief Chief Executive Marcelino Fernandez Verdes, who took the top job in November, is leading a drive to shed airports and real estate development businesses to cut the company's debt while making it a leading global infrastructure provider.
(Reporting by Ludwig Burger; Editing by Edwina Gibbs)