South Korean exchange Upbit will suspend deposit and withdrawal services for Tron network digital assets starting at 9:00 PM KST on October 31, to facilitate a wallet system upgrade. Affected assets for deposits and withdrawals include BTT, JST, SUN, TRX, and USDT. For APENFT and WIN, only withdrawals will be suspended. Trading services will not be affected, and the resumption time will be announced separately.