Hsinchu, Taiwan- Jan 7, 2022 – PTI (TWSE: 6239) today announced its net revenue for Dec 2021: on a consolidated basis, revenue for Dec 2021 were approximately NT$7,320 million, a decrease of 2.71 percent from Nov 2021 and an increase of 18.15 percent from Dec 2020. Revenue for Jan through Dec 2021 totaled NT$ 83,794 million, an increase of 9.99 percent compare to the same period in 2020.