Aurora Mobile Limited (NASDAQ:JG) Q4 2018 Results Conference Call February 28, 2018 7:00 AM ET Company Participants Christian Arnell - IR Weidong Luo - Chairman and CEO Fei Chen - President Bong Shan-Nen - CFO Conference Call Participants Bill Yu - Goldman Sachs Heejung Kim - Deutsche Bank Operator Ladies and gentlemen, thank you for standing by. Welcome to the Aurora Mobile Fourth Quarter and Full-Year 2018 Earnings Call. At this time, all participants are in a listen-only mode. There will be a presentatio ...