Young Optics Inc. reported consolidated sales results for the month and year to date ended December 2017. For the month, the company reported sales revenues of TWD 454,634,000, representing a 8.54% increase as compared to November 2017 and 0.75% decrease as compared to December 2016. The company's consolidated sales revenues from January to December 2017 were TWD 4,455 million, a 8.24% increase as compared to the same period in 2016.