July 30 (Reuters) - Canada's main stock index opened lower on Tuesday, pressured by concerns over the U.S.-China trade war, ahead of a highly anticipated Federal Reserve policy statement.
* At 9:35 a.m. ET (1335 GMT), the Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 69.61 points, or 0.42%, at 16,422.56.