Mazda Motor Corp. said Thursday it has revised upward its group earnings forecast for the first half that ended Sept. 30 and for the full year to March 31, mainly because of a weaker yen.

Mazda said it now expects a midterm consolidated net profit of 5.5 billion yen, up 175 percent from the 2 billion yen projected in May, due to the weaker yen and larger-than-expected reductions in material costs, fixed costs and other areas.

The company also revised its group pretax profit projection to 9.1 billion yen, up 203.3 percent from the earlier expected 3 billion yen, and its sales to 1.16 trillion yen, up 2.6 percent from 1.13 trillion yen.