CANADA STOCKS-TSX drops at open as materials group falls
TORONTO, April 7 (Reuters) - Toronto's main stock index fell at the open on Thursday, extending Wednesday's losses as materials issues led a broad retreat.
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE opened 0.43 of a point lower at 14,202.22. Nine of its 10 main groups fell. (Reporting by Solarina Ho; editing by Peter Galloway)
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