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Vancouver, March 13, 2007 - Scorpio Mining Corporation (TSX:SPM) is pleased to report results from the SGS Lakefield's Metallurgical Lab, located in Lakefield, Ontario, on the metallurgical testing of mineralized material from the Hoag Zone, Nuestra Senora Silver-Zinc Project.
Peter J. Hawley, Chairman, CEO reports, "The scoping level metallurgical test results are very good and indicate clean, high-grade lead and zinc concentrates. The company is very pleased to see that the Hoag Zone mineralization is compatible with previous testing on the Nuestra Senora mineralization. Scorpio Mining Corporation continues to aggressively move forward in advancing the engineering studies, plant construction and development."
The following is the executive summary from their report: "The sample graded 0.24% Cu, 2.54% Pb, 3.59% Zn and 63.5 g/t Ag. Mineralogical examinations indicated that moderate amounts of calcite, sphalerite and grossularite followed by minor amounts of quartz, galena, wurtzite, chlorite, pyrite, pyroxene and potassium-feldspar were present in the sample. An oxide copper assay gave no indications of any secondary copper minerals in the sample that would cause any problems. A Bond ball mill work index test was completed on this ore and determined to be of average hardness at 14.5 kWh/t."
"Batch floatation testing found the Hoag material is amenable to the flowsheet developed for the main Nuestra Senora mineralization, and in fact produce saleable lead and zinc concentrates with a simpler flowsheet. With the low copper head grade, a second copper circuit would not be required but is planned in the current mill flowsheet design."
"Batch flotation testing found that primary grinding to P80's passing 97 microns, the sphalerite in the sample was 52% liberated, 8% attached and 40% locked with galena, pyrite, chalcopyrite, bornite and covellite No regrinds are required. The following results were achieved in the best test and are presented in Table 1:"
Table 1 - Grade and Distribution
"The final confirmatory batch cleaner test resulted in a Lead Concentrate which grading 54.1% Pb, 2.3% Cu, 6.1% Zn and 1,400 g/t Ag recovered 93.10% lead, 36.10% copper, 6.4% zinc and 78.30% silver from the feed. The copper/lead cleaner concentrate graded 9.4% Cu, 8.0% lead, 19.1% zinc and 330 g/t Ag while recovering a further 39.0% of Cu, 3.6% Pb, 5.2% Zn and 4.8% Ag. A zinc cleaner concentrate graded 55.20% Zn, 0.66% Cu and 0.15% Pb while recovering 71.30% of the zinc, 12.9% of copper and 1.1% of the lead. A full ICP scan, mercury and gold assays were performed on these products; the results of the analyses indicate that the combined Pb + Cu/Pb concentrate and the Zn cleaner concentrate meets most current proforma requirements and should be easily saleable." (Bond Cromes, M.M.; March 2007)."
Further information on the Company and the Nuestra Senora project is available on the Scorpio Mining web site at: www.scorpiomining.com.
President, Mr. D. Roger Scammell, PGeo, is the Company's Qualified Person for the Nuestra Senora project. Mr. Scammell is responsible for the current exploration and development program and has reviewed the content of this release.
ON BEHALF OF SCORPIO MINING CORPORATION
Peter J. Hawley
Chairman & CEO
For further information contact:
Glenn Little, Jackson Little Holdings Ltd: 604-930-4375; 1-888-930-4375
Email: jlconsulting@telus.net
Rich Kaiser, YES International: 1-800-631-8127; 001-757-306-6090 (outside North America)
Email: yes@yesinternational.com
This news release includes certain statements that may be deemed "forward-looking statements". All statements in this news release, other than statements of historical facts, that address future exploration drilling, exploration activities and events or developments that the Company expects, are forward looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include metal prices, exploration success, continued availability of capital and financing, and general economic, market or business conditions.
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