PSS CO LTD revenue for the last year amounted to 4.27 B TWD, the most of which — 3.90 B TWD — came from its highest performing source at the moment, Parking Management, the year earlier bringing 3.01 B TWD. The greatest contribution to the revenue figure was made by Taiwan — last year it brought PSS CO LTD 4.27 B TWD, and the year before that — 3.36 B TWD.