WAL, NIL, PLUME perpetual contracts are about to be launched 1. WALUSDT contract trading opening time: 3:00 PM on May 8th (UTC+8) 2. NILUSDT contract trading opening time: May 8th at 3:15 PM (UTC+8) 3. PLUMEUSDT contract trading opening time: 3:30 pm on May 8th (UTC+8)