Jan 29 (Reuters) - Canada's main stock index gained on Tuesday, as energy shares were buoyed by higher crude prices and precious metal mining stocks were supported by rising gold prices.
* The energy sector .SPTTEN rose 1.2 percent, the most among the six major sectors trading higher, as U.S. crude CLc1 prices were up 1.9 percent per barrel, while Brent crude LCOc1 added 1.7 percent. O/R
* This was followed by the materials sector .GSPTTMT , which rose 0.8 percent after gold prices gained as the dollar eased before a U.S. Federal Reserve meeting. GOL/
* The largest percentage gainer on the TSX was Iamgold Corp IMG.TO , which gained 4.7 percent after brokerage BMO upgraded the shares to "outperform" from "market perform."
* At 9:38 a.m. ET (14:38 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was up 53.49 points, or 0.35 percent, at 15,432.11.
* Cascades Inc CAS.TO fell 4.5 percent, the most on the TSX, after Desjardins cut its price target on the stock. The second biggest decliner was Hudson's Bay HBC.TO , down 1.3 percent.
* On the TSX, 171 issues were higher, while 62 issues declined for a 2.76-to-1 ratio favouring gainers, with traded volume touching 16.78 million shares.
* The most heavily traded shares by volume were cannabis producers Aurora Cannabis ACB.TO , Green Organic Dutchman Holdings TGOD.TO and Aphria Inc APHA.TO .
* The TSX posted six new 52-week highs and no new low.
* Across all Canadian issues, there were 13 new 52-week highs and no new low, with total traded volume touching 27.34 million shares.