More fully-licensed cannabis growers and cultivation space are needed to meet a voracious demand for legal marijuana, a spokesman for the industry said. That means more licences for both producers and their grow areas need to be issued by Health Canada, said Allan Rewak, executive director of the Cannabis Council of Canada. Earlier this year, Postmedia reported that Health Canada was rejecting three licence applications for every one it approved, over concerns some of those requesting them had been involved in the black market. Millions of square feet of production capacity is being brought on line, which should help ease or erase supply gaps, said Rewak.