Purchase of Own Securities

MERCURY WORLD MINING TRUST PLC 26 August 1999 PURCHASE OF OWN ORDINARY SHARES IN THE MARKET 1. Date of the purchase: 25th August 1999 2. Number of Ordinary Shares purchased: 1,000,000 3. Highest and lowest price paid per share: 83.5p (excluding expenses) 4. The issued share capital of the Company following this buy-back will be Ordinary shares 193,424,852 5 Name of contact for queries: Miss A J Marsh 0171 220 5430 6. Name of authorised Company official responsible for this notification: Miss A J Marsh for Mercury Asset Management Group Services Ltd Secretary 6. Date of Notification: 25th August 1999
UK 100

Latest directors dealings