Osisko Mining Inc. provided new results from the ongoing Triple 8 deep-hole exploration program at its 100% owned Windfall Lake gold project located in the Abitibi greenstone belt, Urban Township, Eeyou Istchee James Bay, Québec. In May 2018 Osisko commenced deep exploration drilling to investigate the potential for depth extensions of the main mineralized zones, as well as to further test the intrusion-related geological model for the Windfall deposit. In July 2018 Osisko discovered “Triple 8”, a developing new corridor of mineralization at the Windfall deposit, at 1,425 metres vertical depth. New drill results confirm and expand on the initial discovery. Drill hole OSK-W-18-1783 tested the continuity at the mid-point between OSK-W-18-1603 (Triple 8 discovery hole) and gold mineralization intersected in a similar setting in OSK-W-18-1616-W1. OSK-W-18-1783 encountered three distinct altered intervals between 1,819 metres and 1,945 metres downhole, each averaging approximately 10 metres width. Significant results from the three gold bearing intervals include 38.4 g/t Au over 2.0 metres and 16.0 g/t Au over 2.3 metres and. Geometry is still being interpreted, however mineralization is open in all directions. Sericite and silica alteration are hosted within an andesite and gabbro package, surrounded by peripheral chlorite - biotite +/- garnet alteration (identical to that encountered in the Triple 8 discovery hole 350 metres to the north, and in hole OSK-W-1616-W1, 400 metres to the south). The mineralized intervals contain disseminated and stringer pyrite with local visible gold, and trace pyrrhotite and chalcopyrite. OSK-W-18-1783 intersected mineralization in three sericite-silica altered zones hosted within a pervasively chlorite-biotite-garnet altered andesite. The first interval (4.6 g/t Au over 3.3 metres) has moderate sericite alteration and contains up to 10% disseminated pyrite, with local pyrite clusters and stringers. The second interval (38.4 g/t Au over 2.0 metres) has strong sericite and moderate silica alteration, and is interpreted as the strike extension from the Triple 8 discovery hole. This interval contains up to 10% pyrite stringers, 5% disseminated pyrite, local visible gold and trace pyrrhotite. The third interval (16.0 g/t Au over 2.3 metres) has moderate sericite and silica alteration, and contains up to 10% pyrite stringers, 5% disseminated pyrite, local visible gold and trace pyrrhotite and chalcopyrite. OSK-W-18-1603-W1 intersected 18.0 g/t Au over 2.4 metres within a moderate sericite and silica altered porphyritic dike intruded into the mafic volcanic sequence. Mineralization includes up to 20% pyrite stringers, 3% sphalerite and trace chalcopyrite and local visible gold. The interval is approximatively 115 metres above and to the southwest of the Triple 8 discovery in hole OSK-W-18-1603. OSK-W-18-1616-W2 intersected 13.4 g/t Au over 2.0 metres within an approximate 35 metre pervasive chlorite and biotite altered interval within the andesite. Mineralization consists of up to 3% disseminated pyrite, local pyrite stringers and trace pyrrhotite in fracture filling or with weak silica altered bands. The interval was intersected approximatively 1,800 metres below surface and it is the deepest significant gold bearing interval in the deposit to date.