Where under this Act a notice is required or authorized to be given to or served on a person, that notice may be given or served –

(a) in the case of a natural person, by delivering it to that person personally or by sending it by registered post to that person at the address of that person last known to the sender; or

(b) in the case of a corporation, by delivering it to the secretary or some other person concerned in the management of the corporation personally or by sending it by registered post to the corporation at the address of the registered office, or of the principal or only place of business in this State, of the corporation.