Circulars - [General Mandate / Explanatory Statement for Repurchase of Shares / Share Option Scheme / Re-election or...More] PROPOSALS FOR RE-ELECTION OF RETIRING DIRECTORS, GENERAL MANDATES TO ALLOT, ISSUE AND DEAL WITH SHARES AND TO REPURCHASE SHARES, PROPOSED REFRESHMENT OF THE SCHEME MANDATE LIMIT, AND NOTICE OF ANNUAL GENERAL MEETING