Taiwan's Mediatek sees lower gross margins in Q4

TAIPEI, Oct 30 (Reuters) - Taiwan's top chip designer Mediatek Inc (2454.TW) said on Friday it expected its fourth quarter gross profit margins to be slightly lower than the third quarter.

Mediatek also said during an investor conference sales in the fourth quarter would be down 13 to 19 percent from the previous quarter.

Mediatek gave the forecasts after the Taipei stock market closed on Friday. Its shares fell 1.38 percent, underperforming the main TAIEX's 0.21 percent drop. (US$1=T$32.5) (Reporting by Argin Chang; Editing by Jonathan Hopfner)