(1) The airport - lessee company for Sydney (Kingsford - Smith) Airport and the airport - lessee company for Sydney West Airport may be subsidiaries of the same company.
Subsidiaries
(7) For the purposes of this section, a company (the subsidiary company ) is taken to be a subsidiary of another company (the holding company ) if, and only if, all the shares in the subsidiary company are beneficially owned by the holding company.