MineralFields?

Last 10 trading days 6.4 mm shares traded!

GRC Annual Meeting Record date: May 13, 2010

During 2008MineralFields/ Roxmark“RMK” completed private placement unit financings resulting in the issuance of approx. 19.8 million F/T shares and approx. 19.8 million warrants attached, exercisable between .07 and .15 to Dec. 2009 (see below).

The warrants exercised provided approximately $2.8 million to the treasury. This may in part explain the RMK trading volume from Sept. 14, 2009 to mid December 2009, in addition to the Ontex/Roxmark arbitrage. (Sell RMK shares to exercise)

Warrants:

Expiry Date No. of Warrants Exercise Price $/share

Post Post

3-Dec-2009 326,690 87,117 0.10 $0.375

3-Dec-2009 2,333,500 622,267 0.15 $0.5625

9-Dec-2010 1,428,571 380,952 0.07 $0.2625

9-Dec-2010 15,714,283 4,190,475 0.15 $0.5625

Total: 19,803,044 5,280,811 Post Average exercise = $0.54/share

19,803,044 divided by 3.75 = 5,280,811 Goldstone shares

November 2008, MineralFields/Ontex “ONT” completed a private placement financing resulting in the issuance of 7.5 million F/T shares at $0.20 per share. (Post 2.5 million shs. @ $0.60). No warrants.

December 2008, M Partners Inc. /Ontex “ONT” completed a private placement financing resulting in the issuance of 4 million F/T shares at $0.20 per share. (Post 1.3 million shs. @ $0.60). No warrants; 8% finder’s fee paid.