At September 30, 2018, there were 1.3 million warrants outstanding that were issued in connection with government funding (December 31, 2017-2.5 million). The warrants have an exercise price of nil, are exercisable at any time at the option of the holder and have no expiry date. In April 2018, 1.2 million warrants were exercised for proceeds of nil. As a result, in the second quarter of 2018, a pro-rata share of the carrying value of the warrants was reclassified to common share capital.