Operator
Operator
Ladies and gentlemen, thank you for standing by. Welcome to Canaan Incorporated Fourth Quarter and Full Year 2019 Earnings Call. At this time, all participants are in a listen-only mode. After the management prepared remarks, we will have question-and-answer session. Please note this event is being recorded. Now, I would like to hand first over to your speaker for today Mr. Shaoke Li, Board Secretary of the Company. Please go ahead, sir.