Sculptures at Auckland Airport's new art walking trail were bought from an entity linked to one of the company's directors.
The company has disclosed in its latest annual report the genesis behind the purchase of the sculptures set among extensive native planting around a lake in Manukau at the airport.
"For the year ended 30 June 2013 the group agreed with Brick Bay Charitable Trust (which trades as Brick Bay Sculpture Trust) to purchase assets for $444,000 from that trust on an arms-length commercial basis without special privileges," the annual report said.
"Brick Bay Charitable Trust is a charitable trust and non-profit entity with revenue made by the trust used to assist New Zealand artists in meeting the expense of building outdoor artwork.
"The trustees of the Brick Bay Charitable Trust are Richard Didsbury and his wife, Christine Didsbury. Richard Didsbury is a director of Auckland International Airport."