Form 604 Corporations Act 2001 Section 671B Notice of change of interests of substantial holder To Company Name/Scheme Tusker Gold Limited (Tusker) ACN/ARSN ACN 131 945 527 1. Details of substantial holder (1) BUK Holdco Limited (Bidco) on its own behalf and on behalf of Barrick Gold Corporation (Barrick), African Barrick Gold Name plc (ABG) and each controlled entity of Barrick set out in Annexure A (Barrick Entities) ACN/ARSN (if applicable) N/A There was a change in the interests of the substantial holder on 06/04/2010 The previous notice was given to the company on 31/03/2010 The previous notice was dated 31/03/2010 2. Previous and present voting power The total number of votes attached to all the voting shares in the company or voting interests in the scheme that the substantial holder or an associate (2) had a relevant interest (3) in when last required, and when now required, to give a substantial holding notice to the company or scheme, are as follows: Previous notice Present notice Class of securities (4) Person’s votes Voting power (5) Person’s votes Voting power (5) Ordinary shares 27,910,895 27.91% 30,528,920 30.53% 3. Changes in relevant interests Particulars of each change in, or change in the nature of, a relevant interest of the substantial holder or an associate in voting securities of the company or scheme, since the substantial holder was last required to give a substantial holding notice to the company or scheme are as follows: Class and Person whose Consideration Date of Nature of number of Person’s votes relevant interest given in relation change change (6) securities affected changed to change (7) affected Acquisition of relevant interest in ordinary shares by virtue of section 608(8) of the Corporations Act 2001 (Cth) as a result of acceptances of Bidco's off-market takeover offer for all of $0.80 cash per Tusker See Annexure B Bidco the ordinary shares in See Annexure B See Annexure B Share Tusker, which offer is dated 17 March 2010 and contained in Bidco's bidder statement dated 17 March 2010 (a copy of which was given to ASX on 17 March 2010) (Offer). Acquisition of relevant interest in ordinary shares by virtue of section 608(3)(b) of See Annexure B Barrick and ABG Not applicable See Annexure B See Annexure B the Corporations Act 2001 (Cth) in so far as Barrick and ABG control Bidco. Acquisition of relevant interest in ordinary shares by virtue of section 608(3)(a) of See Annexure B Each Barrick Entity the Corporations Act Not applicable See Annexure B See Annexure B 2001 (Cth) in so far as each Barrick Entity has over 20% of the voting power in Bidco. 4. Present relevant interests Particulars of each relevant interest of the substantial holder in voting securities after the change are as follows: Holder of Registered Person entitled Nature of Class and relevant holder of to be registered relevant number of Person’s votes interest securities as holder (8) interest (6) securities Relevant interest under Those persons who section 608(8) of the 30,528,920 ordinary Bidco have accepted the Bidco 30,528,920 Corporations Act 2001 (Cth) shares Offer. (see section 3 above). Relevant interest under Those persons who Barrick and section 608(3)(b) of the 30,528,920 ordinary have accepted the Bidco 30,528,920 ABG Corporations Act 2001 (Cth) shares Offer. (see section 3 above). Relevant interest under Those persons who Each Barrick section 608(3)(a) of the 30,528,920 ordinary have accepted the Bidco 30,528,920 Entity Corporations Act 2001 (Cth) shares Offer. (see section 3 above). 5. Changes in association The persons who have become associates (2) of, ceased to be associates of, or have changed the nature of their association (9) with, the substantial holder in relation to voting interests in the company or scheme are as follows: Name and ACN/ARSN (if Nature of association applicable) N/A N/A 6. Addresses The addresses of persons named in this form are as follows: Name Address Brookfield Place, TD Canada Trust Tower, 161 Bay Street, Suite 3700, Toronto, Ontario M5G Barrick 2S1, Canada c/- Shearman & Sterling (London) LLP, Broadgate West, 9 Appold Street, London, EC2A 2AP, Bidco and ABG United Kingdom c/- Brookfield Place, TD Canada Trust Tower, 161 Bay Street, Suite 3700, Toronto, Ontario Each of the Barrick Entities M5G 2S1, Canada Signature print name John Elliott capacity Attorney sign here date 06/04/2010 DIRECTIONS (1) If there are a number of substantial holders with similar or related relevant interests (eg. a corporation and its related corporations, or the manager and trustee of an equity trust), the names could be included in an annexure to the form. If the relevant interests of a group of persons are essentially similar, they may be referred to throughout the form as a specifically named group if the membership of each group, with the names and addresses of members is clearly set out in paragraph 6 of the form. (2) See the definition of "associate" in section 9 of the Corporations Act 2001. (3) See the definition of "relevant interest" in sections 608 and 671B(7) of the Corporations Act 2001. (4) The voting shares of a company constitute one class unless divided into separate classes. (5) The person’s votes divided by the total votes in the body corporate or scheme multiplied by 100. (6) Include details of: (a) any relevant agreement or other circumstances because of which the change in relevant interest occurred. If subsection 671B(4) applies, a copy of any document setting out the terms of any relevant agreement, and a statement by the person giving full and accurate details of any contract, scheme or arrangement, must accompany this form, together with a written statement certifying this contract, scheme or arrangement; and (b) any qualification of the power of a person to exercise, control the exercise of, or influence the exercise of, the voting powers or disposal of the securities to which the relevant interest relates (indicating clearly the particular securities to which the qualification applies). See the definition of "relevant agreement" in section 9 of the Corporations Act 2001. (7) Details of the consideration must include any and all benefits, money and other, that any person from whom a relevant interest was acquired has, or may, become entitled to receive in relation to that acquisition. Details must be included even if the benefit is conditional on the happening or not of a contingency. Details must be included on any benefit paid on behalf of the substantial holder or its associate in relation to the acquisitions, even if they are not paid directly to the person from whom the relevant interest was acquired. (8) If the substantial holder is unable to determine the identity of the person (eg. if the relevant interest arises because of an option) write “unknown’”. (9) Give details, if appropriate, of the present association and any change in that association since the last substantial holding notice. Annexure A This is Annexure A referred to in Form 604 (Notice of change of interests of substantial holder) signed by me and dated 6 April 2010. John Elliott Attorney 6 April 2010 Barrick Entities Name Jurisdiction 1051694 Ontario Inc. Ontario 1091064 Ontario Limited. Ontario 1398821 Alberta Ltd. Alberta 2193268 Ontario Inc. Ontario 2203474 Nova Scotia Limited Nova Scotia 3244521 Canada Inc. Canada 994748 Ontario Inc. Ontario ABX Financeco Inc. Delaware ABX Global Management Inc. Delaware ABX Holdco 2 LLC Delaware ABX Holdco LLC Delaware AC 40689 Ltd. Cayman Islands Aguas Amarilla Limitada Chile Aguas Colorada Limitada Chile Aguas Elvira Limitada Chile Aguas Quilvar Limitada Chile Archaean Gold Pty Ltd Western Australia Argentina Gold (Bermuda) I Ltd. Bermuda Argentina Gold (Bermuda) II Ltd. Bermuda Argentina Gold Corp. Canada Arizona Star Resource (Bermuda) Ltd Bermuda AurionGold (Canada) Limited Canada AurionGold Administration Pty Limited New South Wales AurionGold Exploration Pty Limited New South Wales AurionGold Limited Australia AurionGold Management Limited Australia Aurum Insurance Company Inc Barbados Austwhim Resources Pty Ltd Western Australia BAPL Holding Ltd Mauritius BarbCo One Ltd. Barbados Bargold Corporation Delaware Barisun Exploration Limited Tanzania Barrick (Australia Pacific Holdings) Pty Ltd Northern Territory Barrick (Australia Pacific) Finance Limited Western Australia Barrick (Australia Pacific) Limited South Australia Barrick (Cowal) Limited South Australia Barrick (Darlot) NL New South Wales Barrick (Goldfields PNG Holdings) Limited Papua New Guinea Barrick (Granny Smith) Pty Limited Western Australia Barrick (GSM) Ltd New South Wales Barrick (HMC) Mining Company Delaware Barrick (Kainantu) Limited Papua New Guinea Barrick (Kalgoorlie) Limited Queensland Barrick (Kanowna) Limited Queensland Barrick (Lawlers) NL Western Australia Barrick (Niugini) Limited Papua New Guinea Barrick (Osborne) Pty Limited New South Wales Barrick (PD) Australia Finance Pty Ltd Western Australia Barrick (PD) Australia Limited New South Wales Barrick (PD) Finance Limited Western Australia Barrick (Plutonic) Limited New South Wales Barrick (PNG Exploration) Limited Papua New Guinea Barrick (Services) Pty. Limited New South Wales Barrick Africa (Pty) Ltd South Africa Barrick Bolivian Holdings Ltd. Cayman Islands Barrick Bullfrog Inc. Delaware Barrick Cayman (A) Ltd. Cayman Islands Barriick Cayman (B) Ltd. Cayman islands Barrick Cayman (D) Ltd. Cayman Islands Barrick Cayman (E) Ltd. Cayman Islands Barrick Cayman (F) Ltd. Cayman Islands Barrick Cayman (G) Ltd. Cayman islands Barrick Cayman (H) Ltd. Cayman Islands Barrick Cayman (L) Ltd. Cayman Islands Barrick Corporate Services (Barbados) Limited Barbados Barrick Cortez Inc. Delaware Barrick do Brasil Mineracao Ltda. Brazil Barrick Energy Inc. Alberta Barrick Exploraciones Argentina S.A. Argentina Barrick Exploration Africa Limited Tanzania Barrick Finance B.V.