Sparton and Osisko Finalize $1.2 Million Joint Work Program for 2011 on Area Surrounding Hammond Reef Gold Deposit

TORONTO, ONTARIO--(Marketwire - May 17, 2011) -SPARTON RESOURCES INC. (TSX VENTURE:SRI), (the "Company') is pleased to announce that the 2011 exploration program on Sparton's claims in the Atikokan, Ontario, gold area have been finalized with Osisko Hammond Reef Gold Ltd. the operating subsidiary of Osisko Mining Corporation ("Osisko", TSX-"OSK", "EWX"-Deutsche Boerse). The properties straddle Osisko's Hammond Reef Gold Project property, which hosts a NI 43-101 compliant inferred resource of 6.7 million ounces of gold (259.4 million tonnes at a grade of 0.8 grams per tonne, using 0.3 grams per tonne cut-off), of which 97% lies within 300 metres of surface. The Sparton property package is subject to a recently executed joint venture agreement with Osisko. (See Sparton News release dated March 21, 2011).

WORK PROGRAM

Osisko, as the manager of the project, submitted a comprehensive $1.2 million dollar work program to the project management committee which gave its unanimous approval. The planned work will cover both the West Hammond and Clement Lake claims. It will consist of at least 3300 metres of new diamond drilling following up the discoveries made by Sparton on the West Hammond claims, as well as new exploration and follow-up on the prospective zones identified elsewhere on the claim areas. There are also provisions for a comprehensive airborne and ground geophysical program, new grid preparation and geochemical surveys, as well as provision for new stripping, trenching and additional drilling. A team of approximately 8 people will be assigned to the various work programs.

Field work at West Hammond is expected to begin in mid-May and with grid extension line cutting, soil sampling and induced polarization surveys in the northern part of the West Hammond claim area. Several areas of anomalous gold values were located by Sparton in this area in 2010. Assay results from prospecting (grab) samples taken during this indicated several new areas of anomalous gold mineralization. The Clement Lake program will begin later in the field season.

DISCUSSION

"Clearly, the past season's work at West Hammond by Sparton has indicated the potential for new discoveries in this emerging gold mining camp in the Atikokan area. Osisko's Hammond Reef program, with 20 drills operating in the property area, is one of the largest mineral development programs in North America" stated Lee Barker, Sparton's President and CEO. "We are excited and committed to working diligently with Osisko to advance the potential of the properties".

Sparton's domestic and international exploration, development, and evaluation programs are being carried out under the direct supervision of A. Lee Barker, P. Eng., P Geol., Sparton's President and CEO who is a Qualified Person under National Instrument 43-101. Mr. Barker has prepared the contents of this release.

Sparton Resources Inc. is an exploration and development company with uranium, germanium and vanadium interests in China, gold interests in Ontario and Nevada, and silver and gold interests in Mexico. The Company also has an off-shore Nova Scotia natural gas interest. There are currently 94,283,930 shares issued and outstanding.

Statements in this release that are forward-looking statements are subject to various risks and uncertainties concerning the specific factors disclosed under the heading "Risk Factors" in the Company's filings with Canadian securities regulators. Such information contained herein represents management's best judgment as of the date hereof based on information currently available. The Company does not assume any obligation to update any forward-looking statements, save and except as may be required by applicable securities laws.

This news release and the information contained herein does not constitute an offer of securities for sale in the United States and securities may not be offered or sold in the United States absent registration or exemption from registration.

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