SHENZHEN HELLO TEC revenue for the last year amounted to 2.31 B CNY, the most of which — 1.89 B CNY — came from its highest performing source at the moment, Portable Energy Storage, the year earlier bringing 2.47 B CNY. The greatest contribution to the revenue figure was made by North America — last year it brought SHENZHEN HELLO TEC 1.32 B CNY, and the year before that — 1.49 B CNY.