In the fourth quarter of last year, Dun Tai Shipments of smartphones by mainland China were affected by seasonal factors. With revenue of 2.77 billion yuan and a 15% decrease in quarter, the single-season pretax loss was 2.6 compared with 3% in the same period of 2016 Billion, a single quarter loss of 0.87 yuan per share; even if the mainland smart phone shipments in 2017 declined slightly, Dun Tai 2017 dollar-denominated revenue is still higher than in 2016, but by the exchange rate, 2017 revenue with new Taiwan dollar denominated but decreased by 2% compared with 2016, to 10.8 billion, the annual consolidated gross profit margin and operating expenses are comparable with 2016, pre-tax net profit of 205 million yuan, a net loss of 103 million after-tax loss for the full year 0.28 yuan, the full-year gross profit margin fell 21%.