The company said net earnings were TWD 15.16bn ($512.1m) last year, against a loss of TWD 9.85bn in 2009.
Revenue grew to TWD 17.02bn from TWD 15.06bn, but operating profit fell to TWD 84.96m from TWD 472.54m year-on-year.
Operating expenses increased to TWD 15.16bn, compared to TWD 13.07bn in 2009.
The owner booked a huge gain of TWD 14.67bn from investment income, against losses of TWD 14.22bn the year before.