WT Microelectronics (3036 TT) today announced its monthly sales for April 2017 totaled NT$12.979 billion, a decrease of 4.40% from March 2017 and an increase of 36.93% over April 2016. Sales for January to April 2017 totaled 51.357 billion, an increase of 39.91% compared with the same period in 2016.