Operator Hello, ladies and gentlemen, thank you for standing by for GDS Holdings Limited First Quarter 2021 Earnings Conference Call. At this time, all participants are in listen-only mode. After management's prepared remarks, there will be a question-and-answer session. Today's conference call is being recorded. I will now turn the call over to your host, Ms. Laura Chen, Head of Investor Relations for the company. Please go ahead, Laura. Laura Chen -- Head of Investor Relations Thank you. Hello, everyone. Welcome to 1Q '21 earnings conference call of GDS Holdings Limited. The company's results were issued via Newswire services earlier today, and are posted online. A summary presentation, which we will refer to during this conference call can be viewed and downloaded from our IR website at investorsgdsservices.com.