TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES(1). Identity of the issuer or the underlying issuer of existing shares towhich voting rights are attached (ii):BLACKROCK WORLD MINING TRUST PLC(2). Reason for the notification (please tick the appropriate box or boxes):An acquisition or disposal of voting rights: (X)An acquisition or disposal of qualifying financial instruments which may resultin the acquisition of shares already issued to which voting rights areattached: ( )An acquisition or disposal of instruments with similar economic effect toqualifying financial instruments: ( )An event changing the breakdown of voting rights: ( )Other (please specify) :(3). Full name of person(s) subject to the notification obligation (iii):Old Mutual Plc(4). Full name of shareholder(s) (if different from 3.) (iv):(5). Date of the transaction and date on which the threshold is crossed orreached if different) (v):25 February 2015(6). Date on which issuer notified:26 February 2015 (notification received late on 2 March 2015)(7). Threshold(s) that is/are crossed or reached:5%(8). Notified details:A: Voting rights attached to sharesClass/type of shares (if possible using the ISIN code): GB0005774855Situation previous to the triggering transaction (vi):Number of Shares:Number of Voting rights (viii):Resulting situation after the triggering transaction (vii):Number of shares:DIRECT:Number of voting rights (ix):Direct (x):Indirect (xi): 10,746,096% of voting rights:Direct:Indirect: 6.06%B. Financial InstrumentsResulting situation after the triggering transaction (xii):Type of financial instrument:Expiration date (xiii):Exercise/Conversion Period/Date (xiv):Number of voting rights that may be acquired if the instrument is exercised/converted:% of voting rights:C. Financial Instruments with similar economic effect to Qualifying Instruments(xv), (xvi):Resulting situation after the triggering transaction:Type of financial instrument: N/AExercise Price:Expiration date (xvii):Exercise/Conversion Period/Date (xviii):Number of voting rights instrument refers to:% of voting rights (xix) (xx):Nominal:Delta:Total (A + B + C):Number of voting rights: 10,746,096% of voting rights: 6.06%(9). Chain of controlled undertakings through which the voting rights and/orthe financial instruments are effectively held, if applicable (xv):N/AProxy Voting:(10). Name of the proxy holder:N/A(11). Number of voting rights proxy holder will cease to hold:N/A(12). Date on which proxy holder will cease to hold voting rights:N/A(13). Additional information:(14). Contact name:Caroline Driscoll(15). Contact telephone number:020 7743 2427

3 March 2015