(1) A shareholder who is entitled to vote at a meeting of shareholders may by means of a proxy appoint a proxy holder, or one or more alternate proxy holders, none of whom need be shareholders, to attend and act at the meeting in the manner and to the extent authorised by the proxy and with the authority conferred by the proxy.
(2) A proxy shall be executed in writing by the shareholder or his or her attorney authorised in writing.
(3) A proxy is valid only at the meeting in respect of which it is given or any adjournment of that meeting.