TORONTO, Nov 21 (Reuters) - Canada's main stock index rose to a 12-day high on Tuesday, boosted by materials companies as gold and copper prices climbed, while TransCanada Corp TRP.TO added to gains after winning a key approval for its Keystone XL pipeline on Monday.
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE unofficially closed up 72.25 points, or 0.45 percent, at 16,076.65. All of the index's 10 main groups ended higher.