**[Announcement from OKX Regarding Polkadot (DOT) Network Migration to Asset Hub]** According to the official plan from Polkadot, OKX will support the migration of the Polkadot (DOT) network to Asset Hub. The specific arrangements are as follows: * OKX will suspend deposit and withdrawal services for DOT tokens at 12:00 PM (UTC+8) on November 3, 2025. * The network migration is expected to take place at 4:00 PM (UTC+8) on November 4, 2025. * After the network migration is completed, we will resume deposit and withdrawal functions once the network is stable. There will be no further announcements regarding this matter. * If you hold DOT tokens in your account, no action is required during the network migration period. Please note: * Trading of DOT tokens will not be affected. However, please be aware of the potential risks associated with spot, margin, and derivatives trading of the relevant tokens, and increase your margin in advance to mitigate risks. * To ensure the safety of your funds, please refrain from performing deposit or withdrawal operations for DOT tokens during the network migration period. **Friendly Reminder from OKX:** Digital assets are innovative investment products and are subject to significant price fluctuations and high investment risks. Please fully understand digital assets, rationally assess your investment capabilities, and make prudent investment decisions. OKX will continue to provide you with better products and higher-quality services! **OKX Team** October 30, 2025