CNS main operation lies in development of CATV which is executed via management of 10 system operators (SO) known as: Prosperity, Everlasting, Wonderful, Liguan, New Vision Wave, Ga Ho, Tele First, Sun Crown, Ching Lian and Gan Du.CATV service provided by these SOs reaches to over 1 million subs residing in Keelung, Taipei City & County, Northern Taoyuan, Tainan City and Kaohsiung City.