Mr. John Burzynski reports

OSISKO INTERSECTS 2.26 G/T GOLD OVER 128 METRES AT KIRKLAND LAKE

Osisko Mining Corp. has discovered a potentially large, bulk-tonnage disseminated-gold deposit on its 100-per-cent-owned Kirkland Lake project. This discovery, named the Canadian Kirkland zone, consists of a previously unreported type of mineralization in this world-class gold camp. The Canadian Kirkland zone is located 750 metres south of Highway 66, approximately 6.5 kilometres southeast of the village of King Kirkland. Mineralization comprises fine disseminated gold and pyrite in a pinkish-grey-to-brick-red altered zone that completely replaces volcanic tuffs. The attached table summarized the results from the first four holes drilled on this zone.

Hole No.                   From             To         Length             Au
                             (m)            (m)            (m)          (g/t)

MU14-25                   110.0          211.6          101.6           0.99
And including             243.0          306.0           63.0           1.43
MU14-26                    83.0          105.0           22.0           0.59
And                       274.0          284.0           10.0           3.03
MU14-27                    52.0           85.0           33.0           0.46
And                       138.0          164.0           26.0           1.66
And                       243.7          298.0           54.3           0.46
MU14-28                    39.6          168.0          128.4           2.26
And                       211.0          226.0           15.0           1.01
And                       244.0          261.0           17.0           0.47

Sean Roosen, president and chief executive officer, stated: "This is the first of what we expect could be one of many discoveries made using our bulk-tonnage model in the Kirkland camp. The discovery was based on compilation work and our 2013 exploration work in the camp, the first time that Kirkland has seen a districtwide approach to identify bulk-tonnage targets. We have identified a number of additional areas that will be the subject of intensive exploration in the coming year and hope to build on the success of this first discovery."

Outcrop is very poor in the area of the Canadian Kirkland zone. However, the same type of disseminated mineralization occurs 1,200 metres northwest of this zone, along Highway 66, in road cuts stretching over a distance of 300 metres. This road showing is known in historical records as the Commodore Kirkland zone. Surface sampling of 10 grab samples in the summer of 2013 returned an average grade of 1.32 grams per tonne gold. The poorly exposed but broad distribution of this new type of mineralization leaves open the potential for a large, disseminated bulk-tonnage gold deposit on the Kirkland Lake property, which would complement known deposits for which resources are being re-estimated, such as the nearly Upper Canada deposit and the Upper Beaver deposit.

The attached table reports weighted-average intersections using a 0.35-gram-per-tonne-gold lower cut-off. Mineralization is disseminated (no veining), and gold grades are relatively homogeneous, with 90 per cent of assays ranging from 0.16 gram per tonne gold to 4.12 grams per tonne gold. The highest assay in the reported intersections is 9.74 grams per tonne gold. Holes MU14-25 and MU14-26 were drilled from the same collar, and oriented south with dips of 50 degrees and 62 degrees, respectively. Holes MU14-27 and MU14-28 were collared 70 metres east of the first two holes and oriented south with dips of 50 and 65 degrees, respectively. Hole MU14-26 intersected white quartz-carbonate breccias that appear to have diluted mineralization. True thickness of the Canadian Kirkland zone is presently unknown.

The host rock is an aphanitic, pinkish grey to brick red, commonly microbrecciated lithology (felsite) that completely replaces well-laminated mafic tuffs of the Temiskaming group. Such thorough replacement indicates high fluid/rock ratios and hence an intense, long-lived hydrothermal system. Pyrite occurs as fine disseminations and fine stockworks along hairline fractures. A later overprint of dull grey aphanitic material with more finer-grained pyrite is associated with higher-grade intersections (greater than three grams per tonne gold). Petrographic and whole-rock geochemical analyses are under way to establish if the felsite is the result of intense potassic or sodic alteration. The Canadian Malartic deposit is characterized by widespread potassic alteration, while the nearby Upper Beaver and Upper Canada deposits are characterized by sodic (albite) alteration; although, in all these deposits, total replacement of host lithologies are but local features. The entire felsite unit is characterized by anomalous gold values in all four drill holes. Average grades of the felsite intersections, calculated using no lower cut-offs, are shown in the attached table.

Hole No.                   From             To         Length             Au 
                             (m)            (m)            (m)          (g/t)

MU14-25                    36.0          306.0          270.0           0.81
MU14-26                    29.0          290.0          261.0           0.31
MU14-27                    45.5          409.0          363.5           0.36
MU14-28                    39.6          272.0          232.4           1.38

Osisko will immediately implement a broad-scale drill program to test an area measuring 2,300 metres by 1,300 metres that covers the Canadian Kirkland and Commodore Kirkland zones, as well as other previously drilled zones in the immediate area that have been historically associated with pink syenites and trachytes, currently interpreted as being part of the same felsite hydrothermal system. The southern limit of the area of interest is the Cadillac/Larder Lake fault, located approximately 200 metres south of the Canadian Kirkland zone. Three north-south cross-sections located in the middle of the area of interest (north of Canadian Kirkland), between the Commodore Kirkland zone and 180 zone to the west, and between the Esker zone and 240 zone at the eastern extremity of the area of interest, will be immediately drilled with stations spaced 200 metres apart. Results will be disclosed as they become available.

All NQ core assays reported above were obtained by standard 50-gram fire assaying AA finish or gravimetric finish at ALS Chemex laboratories in Val d'Or, Que., an ISO/IEC 17025-accredited facility. Reported drill core weighted averages were calculated using a minimum of 0.35 gram per tonne gold over successive intervals of 10 metres with maximum internal dilution length of 10 metres. Intersections of less than 10 metres at less than one gram per tonne gold are not reported. Lost core intervals constituting less than 0.5 per cent of reported intervals within mineralized intersections were all less than one metre long and incorporated as the average grade of adjacent intervals above and below in all length-weighted calculations. Osisko follows strict quality assurance/quality control protocol measures in keeping with industry standards and regulatory reporting requirements. Robert Wares, DSc, PGeo, senior vice-president, exploration and resource development, for Osisko, is the qualified person who has reviewed this news release and is responsible for the technical information reported herein, including verification of the data disclosed.

Reject the inadequate Goldcorp offer

As previously disclosed, the Osisko board of directors has unanimously recommended that Osisko shareholders reject the hostile takeover bid initiated by Goldcorp Inc. and not tender their Osisko shares to the Goldcorp offer. The Osisko board determined that the Goldcorp offer fails to adequately compensate Osisko shareholders for, among others things, the strategic value of Osisko's world-class asset base, the significant upside potential of Osisko's Canadian Malartic mine, or the increased risk inherent in Goldcorp common shares. The full basis for the Osisko board's recommendation is available in a director circular, a copy of which is available on-line at Osisko's website.

Shareholders who have questions or who may have already tendered their shares to the Goldcorp offer and wish to withdraw them may do so by contacting the company's information agent, Laurel Hill Advisory Group, at 1-877-452-7184 (North American toll-free) or 416-304-2011 (banks, brokers or collect calls), or by e-mail.

We seek Safe Harbor.