FORM OF CHANGE OF PREFERENCE

NOTIFICATION LETTER AND REQUEST FORM TO NON-REGISTERED SHAREHOLDERS

ELECTION OF MEANS OF RECEIPT AND LANGUAGE OF CORPORATE COMMUNICATIONS

NOTIFICATION LETTER AND REQUEAT FORM TO REGISTERED SHAREHOLDERS

FORM OF PROXY FOR EXTRAORDINARY GENERAL MEETING

VERY SUBSTANTIAL ACQUISITION IN RELATION TO THE ACQUISITION OF PROMETHEAN WORLD PLC AND NOTICE OF EXTRAORDINARY GENERAL MEETING

NOTICE OF EXTRAORDINARY GENERAL MEETING

VERY SUBSTANTIAL ACQUISITION IN RELATION TO THE ACQUISITION OF PROMETHEAN WORLD PLC — OFFER UPDATE AND EXTENSION OF THE OFFER

INTERIM RESULTS ANNOUNCEMENT FOR THE SIX MONTHS ENDED 30 JUNE 2015

NOTICE OF BOARD MEETING