Purchase of Own Securities

Mercury World Mining Trust PLC
15 December 1999

PURCHASE OF OWN ORDINARY SHARES IN THE MARKET

1. Date of the purchase: 14th December 1999

2. Number of Ordinary Shares purchased:     250,000
          
3. Highest and lowest price paid per share: 87.5p
  (excluding expenses)                      

4. The issued share capital of the Company following this buy-back will be 

   Ordinary shares     191,049,852
   
                                         
5 Name of contact for queries: Miss T A Bennett
                               0171 220 5430

6. Name of authorised Company official responsible for this      
   notification: Miss T A Bennett
                 for Mercury Asset Management 
                 Group Services Ltd
                 Secretary

6. Date of Notification: 14th December 1999