Bonaparte Diamond Mines Mergers, acquisitions, takeovers Wed, 1 Jul 2009 18:29:00 +1000       8 months, 3 weeks ago

ABN 48 116 296 541 1 July 2009 The Manager Companies Announcement Office Australian Securities Exchange Limited Level 10, 20 Bridge Street SYDNEY NSW 2000 Dear Sir Minemakers Limited Off-Market Takeover Offer for Bonaparte Diamond Mines NL We attach a Notice of Variation of Offer (Notice) pursuant to section 650D(1) of the Corporations Act 2001 (Cth). A copy of the Notice is being forwarded today to ASIC and Bonaparte Diamond Mines NL. Yours faithfully John Ribbons Company Secretary street address: Level 2, 34 Colin Street, West Perth WA 6005 postal Address: PO Box 1704 West Perth WA 6872 phone: (08) 9264 7000 Fax: (08) 9264 7099 email: frontdesk@minemakers.com.au ABN 48 116 296 541 NOTICE OF VARIATION OF OFFER – EXTENSION OF OFFER PERIOD TO: AND TO: Bonaparte Diamond Mines NL ACN 078 606 434 (Bonaparte) Each person to whom an offer was made (Offer) pursuant to the bidder’s statement dated 11 March 2009 as varied by supplementary bidder’s statements respectively dated 3 and 21 April 2009 (collectively Bidder’s Statement) issued by Minemakers Limited ACN 116 296 541 (Minemakers), subject to section 650D(2) of the Corporations Act (Cth) ASX Limited Australian Securities & Investments Commission AND TO: AND TO: In relation to the Offer, Minemakers hereby gives notice pursuant to section 650D(1) of the Corporations Act (Cth) that the Offer period is hereby extended by 7 days from the date of this Notice to 5pm (Perth time) Wednesday 8 July 2009 (unless further extended).

Dated: 1 July 2009 Signed for and on behalf of Minemakers Limited by: George Savell Chairman Richard O’Shannassy Director street address: Level 2, 34 Colin Street, West Perth WA 6005 postal Address: PO Box 1704 West Perth WA 6872 phone: (08) 9264 7000 Fax: (08) 9264 7099 email: frontdesk@minemakers.com.au.