GUANGDONG TOPSTAR revenue for the last year amounted to 4.55 B CNY, the most of which — 2.69 B CNY — came from its highest performing source at the moment, Smart Energy and Environmental Management System, the year earlier bringing 2.96 B CNY. The greatest contribution to the revenue figure was made by China — last year it brought GUANGDONG TOPSTAR 4.05 B CNY, and the year before that — 4.47 B CNY.