VAL D'OR, QUEBEC--(April 28, 2009) - Northern Star Mining Corporation (TSX VENTURE:NSM; Northern Star Mining or the "Company") is pleased to announce that it has entered into negotiation with Dumas Contracting Ltd., towards the creation of a strategic alliance.

Dumas will become the sole contractor for Northern Star's present and future underground construction and mining activities. Dumas will be available on an exclusive basis to Northern Star.

Dumas is a well known and experienced mine contracting and engineering company that has been in operation since 1994. Dumas is headquartered in Timmins, Ontario and has conducted mining projects on over 5 continents.

It has notably carried out work for Agnico-Eagle at the Goldex and Lapa gold projects, and for Xstrata at its Raglan Nickel project.

Northern Star is presently continuing its Malartic-Midway decline construction (the Gauthier decline), to access the Chabela, L-Zone and Briar zones during 2009, and along with the expertise of Dumas, is presently planning the engineering and feasibility of a second decline at the Malartic-Midway project to explore and sample a large porphyry intrusive, located near the Osisko Canadian Malartic boundary. In addition, along with Dumas, the Company is presently planning the continuation of the engineering towards the successful access and use of the 3,000 foot deep Shaft #1 located on the project.

Finally, the Company recently acquired 60% of the McKenzie-Break gold project in a joint venture with Britannica Resources (see press release of February 23, 2009). Detailed drilling by Wesdome Gold Mines in 2004 outlined the economic potential for gold mineralization easily accessible by decline. Northern Star believes minimal additional work would be required to expand these gold bearing structures at depth.

The Company, along with the services and expertise of Dumas is presently planning the engineering and feasibility of decline construction on the McKenzie Break project.

Presently, the Gauthier decline at Malartic-Midway project has advanced a total of 1,112 meters towards the South Briar Zone (Briar branch), the Chabela branch of the decline has advanced 210 meters to Chabela and has crosscut 66 meters of drift on Chabela East and 110 meters of crosscut drift in Chabela West. Longhole drilling for bulk sampling is now ongoing in Chabela West.

Finally, the Chabela decline has continued north from Chabela an additional 200 meters to access and explore the new L-Zone discovery area, and will continue and access to the North Briar Zone.

Construction of the Vent Raise access (from surface) at Briar will also begin shortly.

In all, the Company, with the services of Dumas has carried out over 1,550 meters of decline and 120 meters of drifting in the Chabela Zones.

The Company has also begun sending to and stock piling gold bearing rock at its wholly owned mill facilities.

To date, the Company has also drilled 20 holes from surface and underground as part of its 2009 drill program. Evaluation of results from its 2008 program at Malartic-Midway, Callahan and McKenzie Break is still underway, with further results expected.

Michel David, president, states that "the Company is very excited about this planned alliance with Dumas, as it will allow access to the services of a dynamic experienced mine contractor company, allowing Northern Star to continue and accelerate its exploration and development plans."

ON BEHALF OF THE BOARD

Jonathan Awde, Vice-president, Corporate Finance

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release.

Jonathan Awde
Northern Star Mining Corporation
Vice-president, Corporate Finance
TOLL FREE (800) 460-5031 or (819) 825-8088
(819) 825-1199 (FAX)