Annual Report 2017

125 Consolidated SET 2017 2016 2017 2016 Service income Subsidiaries - - 1,639,405 1,826,333 Joint venture entity 16,195 14,527 14,995 13,907 Associates 1,680 1,710 - - 17,875 16,237 1,654,400 1,840,240 Purchase of services Subsidiaries - - 44,629 15,120 Joint venture entity 95,319 92,629 94,119 92,029 95,319 92,629 138,748 107,149 Interest income Subsidiaries - - 100,710 2,160 Interest expense Subsidiaries - - 40,957 32,010 (Unit: Baht’000) Related party transactions for the years ended 31 December 2017 and 2016 were as follows: