PSK revenue for the last year amounted to 351.95 B KRW, the most of which — 220.46 B KRW — came from its highest performing source at the moment, Semiconductor Process Equipment, the year earlier bringing 319.44 B KRW. The greatest contribution to the revenue figure was made by South Korea — last year it brought PSK 145.90 B KRW, and the year before that — 175.97 B KRW.