TORONTO - Some of the most active companies traded Monday on the Toronto Stock Exchange:

Toronto Stock Exchange (20,985.37, up 57.27 points.)

Trevali Mining Corp. (TSX:TV). Materials. Up three cents, or 13.04 per cent, to 26 cents on 20 million shares.

The Royal Bank of Canada (TSX:RY). Financials. Up 62 cents, or 0.48 per cent, to $131.28 on 11 million shares.

Denison Mines Corp. (TSX:DML). Materials. Up 26 cents, or 12.81 per cent, to $2.29 on 9.4 million shares.

Suncor Energy Inc. (TSX:SU). Energy. Down 42 cents, or 1.44 per cent, to $28.69 on 8.8 million shares.

Canadian Natural Resources (TSX:CNQ). Energy. Up seven cents, or 0.13 per cent, to $52.50 on 6.8 million shares.

TC Energy Corp. (TSX:TRP). Energy. Up 11 cents, or 0.17 per cent, to $66.50 on 6.7 million shares.

Companies in the news:

TransAlta Renewables Inc. (TSX:RNW). Down 51 cents or 2.6 per cent to $19.27. TransAlta Renewables Inc. says it has temporarily taken a wind farm in New Brunswick offline after a tower collapse. The Calgary-based company says one of the towers at the 167 MW Kent Hills wind facility in Kent Hills, N.B., collapsed. The facility is majority owned by TransAlta's indirect subsidiary Kent Hills Wind LP. The company says there were no injuries. No one was in the area when the incident occurred and there are no homes in the immediate vicinity. TransAlta says its emergency response team has secured the area to ensure safety. The remaining turbines at the Kent Hills 1 and Kent Hills 2 sites have been taken offline temporarily as a precaution. TransAlta says it is working to determine the cause of the failure and to safely return the site to service. TransAlta's Kent Hills wind farm consists of 50 wind turbines at Kent Hills 1 and Kent Hills 2, and five turbines at Kent Hills 3. The collapsed tower is located within the Kent Hills 2 site.

Hexo Corp. (TSX:HEXO). Down six cents or 2.8 per cent to $2.09. Hexo Corp. says Sebastien St-Louis, the cannabis company's co-founder and chief executive, is leaving the company, effective immediately. The change comes as the company completes a strategic reorganization. Chairman Dr. Michael Munzar said the board has established a special committee to identify a new CEO. HEXO also said chief operating officer Donald Courtney has resigned, though he will remain until a replacement is found. St-Louis said building Hexo has been the highlight of his career and that as a significant shareholder he looks forward to the company's next stage. Hexo said it is in advanced talks and expects to make an announcement on a new CEO in the coming days. The company has made several acquisitions this year, including deals to buy cannabis producer Redecan, 48North Cannabis Corp. and Zenabis Global Inc. Analysts said Hexo's acquisition of Redecan gave Hexo a 17 per cent market share in the Canadian adult-use market in May. That's compared to a 15.5 per cent market share for Tilray Inc. and a 14 per cent market share for Canopy Growth Corp.

This report by The Canadian Press was first published Oct. 18, 2021.

News from © The Canadian Press, 2021