53.—(1) The Commissioners may in connection with or for the purposes of the undertaking form and promote, or join with any other person in forming and promoting, a company—
(a)for using or developing for any purpose, any land within or in the vicinity of the harbour; or
(b)for carrying on any trade or business on any such land.
(2) Except as is otherwise provided by any enactment or rule of law, the powers of the company may include powers to do anything necessary or expedient for the purposes of the objects mentioned in paragraph (1) or for purposes incidental to those purposes, notwithstanding that the Commissioners would not themselves have the power to do that thing.