German airport operator Fraport AG, French construction group Vinci SA and Airports Company South Africa have shown an interest in running Angola’s newly-built international airport, according to a person familiar with the matter.

Angola opened a tender on Nov. 17 to operate the airport in the capital of Luanda for as long as 40 years, giving possible bidders 90 days to submit their offers. The three companies have informed the Angolan government of their interest in the $3 billion airport, said the person, who asked no to be identified because the talks are private.