Month End Performance - Sept.

MERCURY WORLD MINING TRUST PLC
7 October 1999


MERCURY WORLD MINING TRUST PLC
All information is at 30th September 1999 and unaudited.

Performance at month end with net income reinvested
                          One    Three  Year to     One   Three     Five
                        Month   Months     Date    Year   Years    Years
Net asset value          7.6%    13.6%    69.9%   77.5%   -3.0%    -1.6%
Share price              8.5%    20.5%    65.8%   74.4%   -0.4%   -13.4%  
HSBC Global Mining
 Index (Capital Only)    1.7%     5.9%    49.6%   51.2%  -14.1%   -17.5%

At month end
Net asset value 102.18p  including current year net revenue of 1.34p
Share price:    89.75p  Discount to NAV:                       12.2%
                         Net yield:                             1.3%
Total assets:  £222.8m
Gearing:         13.5%  
Ordinary shares in issue:      192,399,852 
As at 30th September 1999, 233,667,434 shares have been repurchased and
cancelled, including 164,776,700 shares cancelled as a result of the share
tender offer.

Sector                 % Total   Country               % Total
Analysis                Assets   Analysis               Assets         
                                               
Base Metals               32.5   South Africa             33.0
Diversified               20.7   Latin America            17.3
Gold                      20.7   America                  17.1
Platinum                  15.9   USA                      10.8
Silver/Diamonds            6.5   Australia                10.4
Industrial Minerals        2.9   Canada                    9.4
Gold Bullion               0.8   Africa                    1.2
                                 Gold Bullion              0.8
                                 
                         -----                           -----
                         100.0                           100.0
                         =====                           =====

Ten Largest Equity Investments
Company          % Investments     Country of Risk    
Anglo American             6.7     South Africa
Impala Platinum            6.3     South Africa
Minas Buenaventura         5.6     Peru
Billiton                   5.0     Europe
Cominco                    4.6     Canada
AngloGold                  3.9     South Africa
Alcoa                      3.7     USA
Pasminco                   3.5     Australia
Gold Fields                3.5     South Africa 
Anglo American Platinum    3.3     South Africa 
    
                          ----
Total                     46.1
                          ====

Sources: Mercury Asset Management Ltd, HSBC Global Mining Index

Latest information is available by typing 'MAMINDEX' on Reuters, 'MAMI' on
Bloomberg or '8800' on Topic 3 (ICV terminal).