robinson PPT Oct2004

Quadra Mining Limited: 

Quadra Mining Limited Robinson Nevada Mining Company September 30, 2004

Senior Personnel - RNMC: 

Senior Personnel - RNMC Senior personnel have an average of 22 years mine experience. Goal is to have all process personnel in place by November 1st. Benefits will average around 35%.

Environmental: 

Environmental Permitting All permits in place. Groundwater permit NEV92105 currently under renewal by State of Nevada. Use of Liberty Pit for short-term mine waste backfill under development with submittal to NDEP before October 30, 2004. Demonstration will involve a modification to the current Waste Management Plan which will also address mine dump development and concurrent dump closure.

WEEKLY MINE PERFORMANCE (YTD, 2004)ROBINSON MINE: 

WEEKLY MINE PERFORMANCE (YTD, 2004) ROBINSON MINE Production Summary – YTD (as of Sep 26, 2004): Actual Budget % of Target Tons 7,397,352 7,302,840 101.3% Total Tons per Week

Budget / LOM Plan 2004-2014Metric: 

Budget / LOM Plan 2004-2014 Metric

MINE OPERATIONSWorking Equipment Schedule: 

Unit Qty. Jun Jul Aug Sep Oct Nov Dec Jan05 Cat 785 6 used X Komatsu 830e 3 used X-(Jun 21) Cat 793 2 new X-(Aug 26, 31) Cat 793 2 new X-(Sept 2, 23) Cat 793 3 new X- (Nov 20, 23, 29) Cat 793 2 new X- (Dec 1, 2) Cat 793 5 new X-(11-21) O&K RH120 1 used X LeTourneau L1800 1 used X-(Jun 15) P&H 2300 1 used X-(Sep 9) Bucyrus 495HR 1 new X-(Sep 15) Hitachi 5500 1 new X-(Nov 8) DMM2 1 used X Bucyrus 49R 1 new X-(Sep 26) IR Viper 1 new X-(Nov 8) MINE OPERATIONS Working Equipment Schedule

Production Fleet – Robinson Mine: 

Production Fleet – Robinson Mine Bucyrus-Erie 495HR Rope Shovel – Electric Commissioned: September 15, 2004 495HR Stats: Dipper Payload = 100T Capacity = 56 YD3 Dumping Height = 33’ Height = 68’ Weight = 1,440 Tons Daily Production Rate: +100,000 TPD

Production Fleet – Robinson Mine: 

Production Fleet – Robinson Mine P&H 2300 Rope Shovel – Electric Commissioned: September 9, 2004 P&H 2300 Stats: Dipper Payload = 66T Capacity = 35 YD3 Dumping Height = 26’ Height = 52’ Weight = 950 Tons Daily Production Rate: +70,000 TPD

Production Fleet – Robinson Mine: 

Production Fleet – Robinson Mine Caterpillar 793C Haul Truck First Trucks Commissioned: August 26 & 31, 2004 CAT 793C Stats: Box Capacity = 255T Operating Height = 21’ Dumping Height = 43.5’ Horsepower = 2300 hp Weight = 423 Tons Daily Production Rate: +16,000 TPD

Production Fleet – Robinson Mine: 

Production Fleet – Robinson Mine Bucyrus-Erie 49RIII Drill – Electric Commissioned: September 26, 2004 Stats: Hole Diameter = 12-1/4 – 13-3/4” Maximum Drill Depth = 70’ Operating Height = 102.5’ Horsepower = 2300 hp Weight = 170 Tons Assigned to BE 495HR shovel bench

Production Fleet – Robinson Mine: 

Production Fleet – Robinson Mine LeTourneau L1800 Wheel Loader Commissioned Used – June 21, 2004 L1800 Stats: Dipper Payload = 60T Capacity = 33 YD3 Dumping Height = 19’ Daily Production Rate: +35,000 TPD L1800 @ Robinson used to make-up production during PM’s and for stockpile re-handling

Production Fleet – Robinson Mine: 

Production Fleet – Robinson Mine Hitachi EX5500 – Diesel Commissioning Scheduled for November 8, 2004 EX5500 – (similar to Robinson unit) EX5500 Stats: Dipper Payload = 62T Capacity = 35 YD3 Horsepower = 2 x 1,350hp diesel engines Daily Production Rate: +60,000 TPD

Slide13: 

First Day of Mining: May 27, 2004

Slide14: 

Current Mine Operation: Sep 27, 2004

MANPOWER RAMP-UP SCHEDULEWGN Mining Contractor: 

MANPOWER RAMP-UP SCHEDULE WGN Mining Contractor Date Labor Crews, Shift, Days per Week 06/07 12 2 Crews, 10-Hr. Shift, 6 Days per Week 06/21 19 “ - ” 06/28 42 “ – “ 07/12 67 3 Crews, 10-Hr. Shift, 6 Days per Week 07/19 73 3 Crews, 10-Hr. Shift, 7 Days per Week 07/28 89 “ – ” 08/07 109 4 Crews, 12-Hr. Shift, 7 Days per Week Sep 128 “ – ” Oct 135 “ – ” Nov 143 “ – ” Dec 153 “ – ”

Mining Contract -- Washington : 

Mining Contract -- Washington

Mill Projects: 

Mill Projects Improvements and Recommissioning Prior to Start-up Replaced bucket conveyor with conventional conveyor. Updated process control instrumentation. Completed tailings dam extension. Aligned SAG and ball mill gears. Replaced bus bars for 480 volt transformers. Replaced concave and mantle liners at primary crusher. Re-spliced all conveyors. Replaced trommel screens on Sag and Ball Mills

Slide18: 

Bucket Conveyor Replacement Project

Slide19: 

Concave Reline of Primary Crusher

Mill Production: 

Mill Production Actual Production First mill production August 31, 2004. Over 600,000 tons milled through 9/28/04. Over 5,000 tons of concentrate produced through 9/28/04. Full mill production during October, 2004. Gravity gold circuit to be operational November, 2004

Slide21: 

10,000 Horsepower SAG Mill

Slide22: 

Concave Reline of Primary Crusher 8750 Horsepower Ball Mills

Slide23: 

3000 Cubic Foot Flotation Machine

Concentrate Haulage From Mine Site to PortCURRENT STATUS: 

Concentrate Haulage From Mine Site to Port CURRENT STATUS Concentrates will be trucked from RNMC to Wendover, UT, where concentrates will be trans-loaded from truck to rail. Pan Western Transportation Specialists has been selected for truck and trans-load to rail. Capital costs of trucks and truck-to-rail trans-loading facility to the account of the trucking company. Union Pacific Railroad has been contracted for gondola cars and rail transport. The Port of Sacramento, California has been selected as the facility for trans-loading from rail to cargo ship.

Quadra Mining Limited: 

Quadra Mining Limited Robinson Nevada Mining Company September 30, 2004