|Weidong Luo||Chairman and CEO|
|Brian Kinstlinger||Alliance Global|
|Ryan Roberts||Navis Capital|
Ladies and gentlemen, thank you for standing by, and welcome to the Aurora Mobile Fourth Quarter and Fiscal Year 2021 Earnings Conference Call. [Operator Instructions] Please be advised that today's conference is being recorded. I would now like to hand the conference over to your host today, Rene Vanguestaine. Thank you. Please go ahead, sir.