BEIJING, July 21 (Reuters) - China's foreign exchange regulator said it will comprehensively use policy measures to stabilise market expectations, at a time when the yuan currency faces renewed downside pressure.

The remarks were made by Wang Chunying, spokeswoman at the State Administration of Foreign Exchange (SAFE).

China's yuan has lost about 4% to the dollar so far this year, one of the worst performing Asian currencies, pressured by widening yield differentials with the United States and signs of a faltering economic recovery.

(Reporting by Beijing Newsroom; Editing by Kim Coghill)