This excerpt taken from the PBR 20-F filed May 22, 2009.
Votes may be cast at a general meeting by a show of hands or by a poll. On a vote by a show of hands, each shareholder or shareholder represented by proxy has one vote. On a vote by a poll, each shareholder or shareholder represented by proxy has one vote for each share owned.
Directors are elected by ordinary resolution by the shareholders at general meetings or by a board resolution of the
directors. Shareholders are not entitled to vote at a general meeting unless calls or other amounts payable on their shares have been paid. In lieu of voting on a matter at a general meeting, the shareholders entitled to vote on that matter may adopt the matter by signing a written resolution.