WT Microelectronics (3036 TT) today announced its unaudited monthly sales for April 2018 totaled NT$16.77 billion, a decrease of 5.5% from March 2018 and an increase of 29.2% over April 2017. Aggregated sales for January to April 2018 totaled NT$66.4 billion, an increase of 29.3% compared with the same period in 2017.