SUSTAINED INFRASTRUCTURE HOLDING CO. revenue for the last year amounted to 1.21 B SAR, the most of which — 1.11 B SAR — came from its highest performing source at the moment, Port Development and Operations, the year earlier bringing 1.40 B SAR. The greatest contribution to the revenue figure was made by Saudi Arabia — last year it brought SUSTAINED INFRASTRUCTURE HOLDING CO. 1.32 B SAR, and the year before that — 1.60 B SAR.