Norwalk, Connecticut--(Newsfile Corp. - February 12, 2021) - Tantalus Systems Holding Inc. (TSXV: GRID) ("Tantalus" or the "Company"), a smart grid technology company, celebrated the Company's listing on the TSX Venture Exchange ("TSXV") by virtually ringing the opening bell at the Toronto Stock Exchange at 9:30 a.m. ET today. The Company's...