BEIJING, Dec 9 (Reuters) - China's factory gate prices rose 12.9% from a year earlier in November amid a government crackdown on runaway commodity prices and an easing power crunch, official data showed on Thursday.

The increase in the producer price index was slower than a 13.5% gain in October but faster than the 12.4% rise expected in a Reuters poll of analysts.

The consumer price index (CPI) rose 2.3% year-on-year, the National Bureau of Statistics said in a separate statement, slower than expectations for a 2.5% rise and following a 1.5% uptick in October.

China's central bank on Monday announced a cut to the amount of cash that banks must hold in reserve, its second such move this year, to bolster slowing economic growth. (Reporting by Liangping Gao and Gabriel Crossley; Editing by Sam Holmes)