Mediatek Inc. reported a slight year on year increase in first quarter turnover to NT$47.5 billion ($1.5 billion) from NT$46 billion ($1.5 billion) a year earlier, though net profit declined 28.5% to NT$7.2 billion ($235 million) from NT$10.4 billion ($339.5 million), Mediatek’s first drop in profit for 12 quarters.