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| February 21, 2008 CK Property Trench Samples Average 1.88 Meters Grading 17.30% Combined Lead/Zinc | |
| Vancouver, B.C.: CMC Metals Ltd. (the "Company") is pleased to update the results for the trench sampling at the CK property. The focus for the 2007 exploration program was to expand the surface trench for geological mapping, conduct historical drill hole twinning as data verification, infill drilling between the historical holes, and also step-out drilling to expand the geological strike area of interest. "Based on the 2007 exploration results plus the confirmation of the historical drill results, the Company is moving forward to developing a strategy and schedule to have the CK property permitted for an operational mine license", states Don Wedman, President and CEO. Drill results were previously reported in the February 13th, 2008 news release. The following are the summary highlights of the available trench sample assays: Trench Length Lead Zinc Combined Sample (m) % % Lead/Zinc ------ ------ ---- ----- --------- CK07-01T 4.60 2.03 7.99 10.02 CK07-08T 0.30 0.03 13.10 13.13 CK07-16T 1.60 0.85 4.57 5.42 CK07-20/21T 2.45 2.77 11.71 14.48 Incl. 1.9 3.28 13.84 17.12 CK07-23T 1.70 3.92 21.03 24.95 CK07-26T 0.60 4.44 22.24 26.68 CK07-28/29T 2.15 3.39 17.29 20.68 Incl. 1.65 4.26 21.5 25.76 CK07-33/34T 1.60 3.50 19.53 23.03 Incl. 1.1 3.13 17.95 21.08 ACME Analytical Laboratories Ltd. in Vancouver conducted sample preparation and analysis. Sample analysis was by seven acid digest (7AR), and analyzed by ICP-ES method. Standard samples and blanks were used for quality assurance and quality control for sample analysis. Length is trench sample width. The 2007 exploration was confined to one of the seven known mineral showings on the CK property. The New zone is well defined with over 100 drill holes plus an exposed 90 meter surface trench that was sampled during the 2007 exploration program. Based on the available trench samples the average unweighted grade of 14.68 percent zinc, 2.62 percent lead and an average width of 1.88 meters was mapped over the strike length of the trench exposure. The trench results are similar in average grade and width as observed in the drill intersects and past historical drill programs. Data from the 2007 exploration and historical data will be used to develop a polygon grade model for the purpose of assessing the economic merits of this deposit. Based on the model the 2008 drill program of 2500 meters will be designed to maximize the geological information. About the CK Property The CK Property consists of 27 claims located 54 km northwest of Clearwater British Columbia. The property has had geochemical and geophysical surveys and diamond drilling conducted by Cominco and several other operators over the past 20 years. The deposits found are Broken Hill-type with zinc, lead, and silver mineralization. There are currently seven known mineral occurrences on the property with the two main occurrences being the CK and the New occurrences. The CK (BC Minfile 082M 224) is confined to a calcareous horizon that trends southeast on a southern limb of a synform. A sulphide layer up to 2.1 km long and 7.8 meters wide has been drill explored. One section gave an average drill grade of 11.2 percent zinc and 1.6 percent lead over a 2.5 meter intersection striking 600 meters. One historical estimate was reported in the 1987-1988 edition Canadian Mines Handbook by Rea Gold Corporation to be a "drill indicated resource" of 1,643,000 tons grading 8.6 percent zinc, 1.4 percent lead. The New occurrence was discovered in the mid 1980's. One of the drill programs intersected the New occurrence with 83 drill holes and produced an average unweighted intersect grade of 14.5 percent zinc, 2.36 percent lead and 8 grams per tonne silver. A few years later a historical indicated resource estimate was determined to be 500,000 tonnes grading 11.3 percent zinc and 2.0 percent lead (Green, P.Eng., 2000, for BWI Resources Limited). Additional inferred resources of 380,000 tonnes were estimated at the same grade (Green, P.Eng., 2000, for BWI Resources Limited). The information set out herein is based on current drilling and historical data that requires an updated N143-101 compliant resource estimate. A qualified person has not done sufficient work to classify the historical estimate as current mineral resources and the Company is not treating the historical estimate as current mineral resources and the historical estimate should not be relied upon. The technical information in this news release has been prepared in accordance with the Canadian regulatory requirements set out in National Instrument 43-101 and reviewed by Don Wedman, P.Eng., President and Chief Executive Officer for CMC Metals Ltd., a qualified person under National Instrument 43- 101. This news release was prepared on behalf of the Board of Directors, which accepts full responsibility for its contents. On behalf of the Board: "Don Wedman" Don Wedman, P.Eng. CEO CMC METALS LTD. The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release. | |
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