To: Sudhir Khanna who wrote (21152 ) 6/19/1999 7:42:00 PM From: teevee Read Replies (1) | Respond to of 26850
Sudhir, I would appreciate your comment on the following: 1. A review of the CF data to date reveals that the CF results around Pit#1 andPit#4(just reported) are about 50% or less than elsewhere in the kimberlite sheet... 2. Of all areas and drill holes where CF results have been performed to date, it appears that "mother nature" dealt Winspear a cruel hand around Pit#1 and the adjacent Pit#4.... 3. Although the average value per carat for pit#1 and pit#2 were previously reported as $US301.00/per carat, CF results suggest that the implied value per tonne for pit #1 and Pit #4 should conservatively be about 50% or half the average value per tonne in Pit#2 and (hopefully) Pit#3.... 4. If the average value per tonne for pit#4(~$180.00) represents 50% of the anticipated value of Pit#3($~US360/tonne) the average between Pit#3 and Pit#4 should come in at about $270/tonne..... This following is what I would like your comment on: a. I believe, based upon the CF results, that Pit#1 is an aberation in grade and Winspear was unlucky in that they ended up with that location(CF results appear fairly uniform elsewhere). b. Increasing sample size adjacent to each pit will increase confidence in modeling grade in relation to CF results etc... c. This is the big question....although performing a bulk adjacent to Pit#1 in addition to a bulk sample adjacent to Pit#2 is obviously a more rigourous and conservative geotechnical approach, in the context of developing a grade prediction model based upon CF results, why couldn't the area around Pit #1 be excluded from mine plans until after payout? and if the area around Pit#1 is an abberation in terms of grade and implied value per tonne, perhaps the results, in relation to CF data, from Pit#2 and Pit#3 are more representative of the kimberlite sheet as a whole? This would imply that we could reasonably expect an implied value per tonne of $US360.00 per tonne instead of an average of $270.00/per tonne...... Other comments.....interestingly, pit#2 & Pit#3 lie on the axis of injection or the axis of thicker kimberlite.....this suggest to me that the thicker portions of the sheet also have good grade, implied value per tonne etc.... Winspear looks more and more like a screaming buy to me.....TIA regards, teevee