MDN Inc First Drilling Phase Completed With Success on Isambara by 24hgold

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NORTHERN MINING EXPLORATIONS LTD.
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May 16, 2007

First Drilling Phase Completed With Success on Isambara

43,1 g/t gold over 1 metre near surface

MONTREAL, QUEBEC--(CCNMatthews - May 16, 2007) - MDN Northern Mining (TSX:MDN) ("MDN") is pleased to announce that the first phase of drilling, on a total of four phases planned in 2007, is now completed on Isambara, a gold discovery identified last year, 28 km north of the Tulawaka Gold Mine in Tanzania. Drillings of the first phase confirmed the extension of the gold structure over a length of 1.3 km, which remains laterally open over a possible distance of 5 km.

The Isambara target was initially identified by soil geochemistry surveys over a length of 5 km. In early 2007, detailed soil geochemical and gradient Induced Polarization (IP) surveys were completed in order to identify new structures interpreted as being favourable to gold mineralization. A number of these structures were tested by 25 RC holes for a total of 1,487 meters. Drilling results are presented in the table below:


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                  Target                            From  To Length  Grade
RC-Hole   Section   area                     Target    m   m      m g/t Au
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ISRC-79     270NE   East IP anomaly in extension of   17  18      1   1.03
                                            ISRC-37
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ISRC-81     270NE   East        Untested IP anomaly   43  46      3   6.80
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ISRC-84     200NE   East IP anomaly in extension of   17  18      1   1.16
                                           ISRAB-09   33  34      1   1.94
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ISRC-87     200NE   East IP anomaly in extension of   37  39      2   1.39
                                            ISRC-40   44  45      1   1.00
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ISRC-88     160NE   East        Untested IP anomaly   08  16      8   1.33
including                                             08  09      1   6.20
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                                                      36  37      1   1.04
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                                                      41  42      1   1.26
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ISRC-90     150NE   East        Untested IP anomaly   27  28      1   2.28
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ISRC-91     150NE   East        Untested IP anomaly   43  44      1   1.94
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ISRC-92     150NE   East        Untested IP anomaly    8   9      1  43.10
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ISRC-96     360NE   East        Untested IP anomaly   15  16      1   7.12
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ISRC-100     25SW   West IP anomaly in extension of   50  51      1   1.40
                                            ISRC-21
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ISRC-102    200SW   West        Untested IP anomaly    2   3      1   2.12
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ISRC-103    275NE   East     Extension of ISRC-49 &    0   1      1   7.99
                                            ISRC-50    4   5      1   1.71
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"We are very encouraged by these results which let foresee the important potential of the Tulawaka area and the Isambara sector in particular", said Paul-A. Girard, President and Chief Executive Officer of MDN.

Because of the drilling techniques used, it is not possible to accurately determine the true width and orientation of the mineralized intersections. The best intersections at Isambara are in pyrite-rich quartz veins but most of the intersections are hosted by sheared granite with minor sulphides.

From now until the end October, the next phases of the exploration program on Isambara will consist of:

- Additional detailed geochemical surveys over the remainder of the 5 km soil anomaly, followed by gradient IP surveys;

- 1,500 meters of RC drilling to test new soil geochemical anomalies and IP anomalies;

- 2,000 meters of Diamond drilling to increase understanding of the geological controls of the gold mineralization in preparation for the following phase of RC drilling and to test the structures at greater depth (100-150 m vertical);

- 2,500 meters of RC drilling to better define the known mineralization.

In addition, gradient IP and soil surveys were completed on other properties under the control of MDN in the Tulawaka area. These surveys identified new targets on which drilling tests will be conducted soon. A Diamond drill rig will start in June while RC drilling will continue its methodical work of evaluation of the known gold occurrences and the new targets.

Samples were analyzed by fire assay at the SGS laboratory in Tanzania, certified under international standards. A rigorous program of analytical grade verification implemented by MDN Northern Mining included 12% control samples. Drilling was carried out under the management of geologist Laurent Millo, and supervised by geologist Dominique Fournier, Ph.D., who acted as a qualified person in accordance with NI 43-101

The Isambara discovery is part of the Simba project, a partnership between MDN (70%) the operator, Lakota Resources (15%) of Toronto and Jope Business Associates (15%) of Dar-es-Salaam.

MDN NORTHERN MINING is a Montreal-based Canadian exploration company that holds a 30% participation in the Tulawaka Gold Mine (Tanzania). Its main exploration activities are carried out in Quebec through gold and base metal interests and in Tanzania through a majority interest in 20 adjacent mineral licenses.

CONTACT INFORMATION

MDN Northern Mining
Paul-A. Girard
Chairman & CEO
514-866-6500

or

Richard Corbo
Corporate Development
514-866-6500

or

Dominique Fournier, Ph.D.
Vice-President, Exploration
514-866-6500
www.xnord.com

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