March 22 (Reuters) - Canada's main stock index ended sharply lower on Thursday, registering its biggest one-day percentage drop since September 2016, as worries over the threat of trade wars between the United States and China rattled investors.
U.S. President Donald Trump signed a presidential memorandum that could impose tariffs on up to $60 billion of imports from China. Trump will target the Chinese imports only after a consultation period. stocks dropped as well, with each of the three major Wall Street indexes suffering its biggest daily percentage drop in six weeks. The Toronto Stock Exchange's S&P/TSX composite index fell 275.35 points, or 1.76 percent, to 15,399.93.
* The TSX energy index .SPTTEN was down 2.4 percent and among sectors with the biggest declines on the day following a decline in oil prices. The TSX posted three new 52-week highs and nine new lows. Across all Canadian issues there were 11 new 52-week highs and 40 new lows.
* The largest percentage gainer on the TSX was New Flyer Industries Inc NFI.TO , which rose 4.5 percent, while the largest decliner was Eldorado Gold Corp ELD.TO , down 11.1 percent.
* Among the most active Canadian stocks by volume were Bombardier Inc BBDb.TO , up 0.5 percent to $3.78; Aurora Cannabis Inc ACB.TO , down 4.5 percent to $9.63 and Eldorado Gold.