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SEMAFO: update report on Wona extension deep drilling program - WDC 92: large zone 5.4 g/t / 20 m, including 7.34 g/t / 11 m
Tuesday, June 30, 2009 10:00 AM


TSX-SMF

MONTREAL, June 30 /CNW Telbec/ - SEMAFO (TSX: SMF) today announced ongoing results from its 2009 exploration program at the Mana mine in Burkina Faso. Core drilling resumed on the project in April, with a second drill rig having been added in June. A third drill rig is scheduled to arrive on site in mid-July. Currently, some 6,400 m have been drilled from 19 holes. Assays results have been received for holes WDC 80 to WDC 92.

The current drilling program confirms the at-depth NE high-grade extension of Wona. Initial reference was made to this potential mineralization in SEMAFO's press releases dated February 25 and March 2, 2009 as well as those published March 24th, June 17th and August 8th 2008. Results maintain the presence of significant mineralized zones at-depth.

The auriferous Wona deep extension consists of highly silicified zones crossing sequences of alternating volcanoclastics and shales. Some shales include graphite. Silicification injections throughout the schistosity result in local grey banding so pervasive that it may conceal the original rock over several meters. Long axes of the mineralisation plunge some 25 degrees towards the NE as shown on the following longitudinal. Additionally, internal swells seem perpendicular as demonstrated by WDC 92 returning 2.72 g/t over 60 m and when considering the entire mineralization, as demonstrated by the older WDC 72 with 3.92g/t over 60 m. The potential of large ore deposits warrants further investigation. Silicified rocks host on average 2% to 5% sulphides, consisting mainly of pyrite with arsenopyrite with surrounding sericite and carbonate alterations.

The area herein described is shown on the attached longitudinal section displaying contoured grade-thickness product with hole location. http://files.newswire.ca/357/LongitudinalSection.doc

The following table presents the drilling results including the main mineralization intersected and high-grade values.

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                     DDH Intersections At-depth
                             Wona NE Ext.
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DDH NO         SECTION          FROM            TO          AU(g/t)(x)
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WDC 80          16850N         186.77         194.75      3.09 g/t / 8 m
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WDC 81          16850N         308.85          328.2   3.05 g/t / 19.4 m
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Included                          318          328.2   3.79 g/t / 10.2 m
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WDC 81          16850N            347            353      3.18 g/t / 6 m
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WDC 82          16950N            207          211.6    3.72 g/t / 4.6 m
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WDC 83          16950N         244.92         251.31    3.78 g/t / 6.4 m
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WDC 83          16950N         256.95         274.17   3.05 g/t / 17.2 m
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Included                       256.95         261.31    7.40 g/t / 4.4 m
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WDC 84          17050N         263.62          281.2   2.84 g/t / 17.6 m
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WDC 85          17050N         171.62            186   4.82 g/t / 14.4 m
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Included                       175.21          184.2      6.21 g/t / 9 m
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WDC 86          17150N            261         286.33   3.42 g/t / 25.3 m
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Included                       276.22         286.33   4.80 g/t / 10.1 m
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WDC 87          16600N         234.17         244.25   3.16 g/t / 10.1 m
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WDC 88          16850N         237.39         245.85    3.28 g/t / 8.6 m
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WDC 88          16850N          249.4         263.66   3.05 g/t / 14.3 m
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Included                       252.15         257.66    4.45 g/t / 5.5 m
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WDC 88          16850N          266.5         285.35   3.02 g/t / 18.9 m
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Included                       271.47         277.05    5.48 g/t / 5.6 m
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WDC 89           16850         360.35          377.3     2.70 g/t / 17 m
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Included                       365.35          375.3     3.59 g/t / 10 m
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WDC 90           16700          308.5          313.5      1.92 g/t / 5 m
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                 16700          345.2            349    2.10 g/t / 3.8 m
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WDC 91           16800          500.8          503.8      4.80 g/t / 3 m
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                 16800          508.7          514.7      1.65 g/t / 6 m
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WDC 92           17100            303          309.8    3.43 g/t / 6.8 m
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                 17100          343.9          363.9     5.40 g/t / 20 m
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Included         17100          351.9          362.9     7.34 g/t / 11 m
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(x) All lengths are down-the-hole lengths; additional information is
    required to determine true widths.

The following schematized longitudinal shows the mineralization trend with the past drilling and coming programs.

In conjunction with the actual drilling program underway over Wona deep extension, an external scoping study contract has been awarded to Met-Chem Canada Inc. As part of this study, mining simulations will be carried out from the resources block model, including parameters such as rock mechanics. Results will be taken into consideration in determining the most appropriate mining alternative.

In addition, an ultra high-resolution low elevation helicopter borne magnetic and radiometric geophysical survey will be flown in the coming weeks over the Mana group of permits. The objective of this exercise is to identify the potential for Wona-type deposit discovery along the geological trend which runs 90 km on the property, both to the northeast and to the southwest of the mine. The contract, awarded to Fugro Airborne Surveys of South Africa, covers 1,015 km2 with 11,520 km of flight lines spaced at 100 m.

The drilling programs were designed and managed locally by Dofinta Bonde, Mana Mineral's Exploration Chief Geologist, supported by Donald Trudel, experienced mine and exploration professional geologist, and guided and supervised under the direction of Michel Crevier, P.Geo MScA, Geology Manager and SEMAFO's Qualified Person who has reviewed this press release for accuracy and compliance with the Canadian Instrument NI 43-101.

All individual samples represented one-meter length of core drilling which was sawn in half or one-meter length. One half core is kept on site as a control with the identical sample sent for preparation and gold assaying at the ALS Chemex laboratories in Ouagadougou, Burkina Faso. Each sample was fire assayed for gold content on a 50-gram sub-sample at the same ALS Chemex laboratories. Complementing ALS Chemex's own QA/QC (Quality Assurance/Quality Control) program, an internal quality control and quality assurance program was in place throughout the sampling program, using blind duplicates and recognized industry standards.

Mana has a total of 908,600 ounces of gold mineral reserves, 1,021,400 ounces of measured and indicated resources and 508,200 ounces of inferred resources.

About SEMAFO

SEMAFO is a Canadian-based mining company with gold production and exploration activities in West Africa. The Company currently operates three gold mines in Burkina Faso, Niger and Guinea. SEMAFO is committed to evolve in a conscientious manner to become a major player in its geographical area of interest, while maintaining principles and strengthening relationships to increase shareholder value.

Forward-looking Statements

This press release may contain forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding the Company's expectations as to the market price of gold, strategic plans, future commercial production, production targets, timetables, mining operating expenses, capital expenditures, and mineral reserve and resource estimates. Forward-looking statements involve known and unknown risks and uncertainties and accordingly, actual results and future events could differ materially from those anticipated in such statements. Factors that could cause future results or events to differ materially from current expectations expressed or implied by the forward-looking statements include, but are not limited to, fluctuations in the market price of precious metals, mining industry risks, uncertainty as to calculation of mineral reserves and resources, risks related to hedging strategies, risks of delays in construction, requirements of additional financing and other risks described in the Company's documents filed from time to time with Canadian securities regulatory authorities. Although the Company is of the opinion that these forward-looking statements are based on reasonable assumptions, those assumptions may prove to be incorrect. Accordingly, readers should not place undue reliance on forward-looking statements. Readers can find further information with respect to risks in the Company's Annual Information Form and other filings with Canadian securities regulatory authorities available at www.sedar.com. The Company disclaims any obligation to update or revise these forward-looking statements, except as required by applicable law.

(Source: CNW )


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