POLYMET MINING, INC. - 1998 DUNKA ROAD METALLURGICAL DRILLING, ADDITIONAL ASSAY RESULTS
VANCOUVER, B.C.--
PolyMet Mining Corporation is pleased to announce the results of the final four holes from its fourteen hole reverse circulation drilling program. News releases on September 25, October 9, and October 23 reported assay results from the first ten holes of the 6365-foot program. The assay results from holes 98-205C, 98-206C, 98-207C, and 98-208C delineate intercepts of 140 feet to 230 feet of primary mineralization. Hole 98-208C intersects three mineralized zones between the 255-feet and 625-feet interval. These three zones combine for a 230-ft primary mineralized zone, of which 155 feet averages 1.45% copper equivalent.
The attached table shows the thickness, grades, and the copper equivalence of the primary mineralization for each drill hole. The attached drill hole location map locates the fourteen PolyMet Mining Corporation drill holes relative to the previous US Steel drill holes. The map also includes the thickness of the primary mineralization for both the US Steel and PolyMet Mining Corporation drill holes. The thickness of the primary mineralization varies for a number of reasons.
1) Faulting has exposed the primary mineralization at surface in drill holes 98-105B and 98-108B. Compare the primary mineralization thicknesses of drill holes on opposite sides of the fault, 98-108B (65 feet) and 98-201C (290 feet).
2) Drill holes adjacent to some of the structures have thinner intercepts of primary mineralization vs. holes drilled further away from those structures. Compare the primary mineralization intercepts between drill holes 98-204C(90 feet)
and 98-114B(275').
All material from this metallurgical drill program is sampled every five feet and shipped to Acme Analytical Laboratories in Vancouver. Chemex Labs is conducting check assays.
Reverse circulation chips for average mineable grade identified from the assay results are being shipped to Lakefield Research Laboratories in Brampton, Ontario. The samples will be crushed, ground, and subjected to flotation to make a bulk sulfide concentrate. The production of this concentrate should begin within the next week or two. This concentrate will be shipped to different metallurgical labs for bio-leaching, pressure oxidation leaching, and other hydrometallurgical studies.
For further information please contact the Vancouver office at (800) 221-9492, or the company headquarters in Golden, Colorado at (877) 233-4831. You may also contact our web site at www.polymetmining.com.
DONALD W.GENTRY PRESIDENT & CEO
This news release was prepared by Donald W. Gentry on behalf of PolyMet Mining Corp., which is solely responsible for its contents. The Vancouver Stock exchange has neither approved nor disapproved the information herein.
Table 1
Average Assay Values ---------------------- Drill Primary Mineralized Cu Ni Co Au Pt Pd Copper Hole Interval(thickness % % ppm g/t g/t g/t Equiv- Number in feet) -alency ----------------------------------------------------------------- 98-205C (330' to 365') 35' 0.42 0.13 75 0.118 0.089 0.257 1.27 98-205C (415' to 450') 35' 0.34 0.12 84 0.033 0.055 0.244 1.11 98-205C (460' to 580') 120' 0.37 0.12 103 0.033 0.059 0.319 1.37 98-206C (385' to 565') 180' 0.36 0.11 85 0.041 0.074 0.275 1.16 98-207C (380' to 405') 25' 0.37 0.12 75 0.040 0.076 0.351 1.20 98-207C (425' to 540') 115' 0.45 0.12 76 0.062 0.117 0.475 1.39 98-208C (255' to 290') 35' 0.47 0.13 85 0.080 0.117 0.574 1.53 98-208C (340' to 380') 40' 0.37 0.11 77 0.035 0.069 0.311 1.13 98-208C (470' to 625') 155' 0.48 0.14 73 0.047 0.106 0.482 1.45
* Assuming metal prices of U.S. $0.76/lb for copper, U.S. $1.83/lb for nickel, U.S. $25.00/lb for cobalt, U.S. $290/oz for gold, U.S. $353.00/oz platinum and U.S. $283.00/oz for palladium. Actual payable values received will depend upon recovery, which may vary for different metals and prevailing metal prices..
Note: Cu = copper, Ni = nickel, Co = cobalt, Au = gold, Pt = platinum, Pd = palladium, ppm = parts per million, g/t = grams per metric ton |