TCK revenue for the last year amounted to 226.85 B KRW, the most of which — 225.04 B KRW — came from its highest performing source at the moment, Semiconductor, Solar Cells and Light Emitting Diode, the year earlier bringing 316.38 B KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought TCK 101.04 B KRW, and the year before that — 121.27 B KRW.