Aug 10 (Reuters) - Futures for Canada's main stock index advanced on Thursday as metal prices gained on bets of more economic stimulus in China, while investors awaited U.S. inflation readings for clues on the Federal Reserve's interest rate path. GOL/O/R Algonquin Power & Utilities AQN.TO said it was considering a sale of its renewable energy business, while among company earnings, Canadian Tire Corp CTCa.TO reported a drop in quarterly revenue. Canada's largest insurer Manulife Financial MFC.TO reported better-than-expected quarterly profit on Wednesday, while pot-producer Canopy Growth WEED.TO again raised going concern doubts.