Announcement from Ouyi on Base Network Upgrade We will support Base network upgrades. To ensure the smooth progress of the upgrade, please note the following arrangements: Suspension time: Starting from 01:30 (UTC+8) on June 26, 2026, the deposit and withdrawal services of all tokens in the Base network will be suspended. Service Recovery: After the network upgrade is completed, we will resume coin deposit and withdrawal services while the network is running stably, without further announcement. No action required: If you hold relevant tokens in your account, no action is required during the network upgrade period. Please note: Transactions are not affected: Transactions of related tokens will proceed normally. But please pay attention to the potential risks of spot, leveraged, and derivative trading of related tokens, and increase margin in advance to reduce risks. Financial security: Please do not perform any token deposit or withdrawal operations during the network upgrade period to avoid financial losses. For more information, please refer to the project announcement. Ouyi Team June 24, 2026