KT Corporation revenue for the last year amounted to 19.87 B USD, the most of which — 14.06 B USD — came from its highest performing source at the moment, ICT, the year earlier bringing 14.15 B USD. The greatest contribution to the revenue figure was made by South Korea — last year it brought KT Corporation 20.06 B USD, and the year before that — 19.73 B USD.