[OKX to Conduct System Maintenance on Nitro Spreads on August 4, 2026] Dear OKX Users, To further enhance system performance and provide you with a better trading experience, OKX will conduct system maintenance on Nitro Spreads from 18:30 to 19:30 (UTC+8) on August 4, 2026. Impact during the maintenance period: - Nitro Spreads will enter cancel-only mode, and no new spread orders can be submitted during this time. - Existing unfilled spread orders can still be canceled as usual. - Other trading services on OKX will not be affected. Once the maintenance is completed, the related services will automatically resume. The actual maintenance time may be shortened or extended. If completed earlier, no further notice will be issued. To avoid any impact on your trading, we recommend that you manage your unfilled orders and positions in advance. We sincerely apologize for any inconvenience caused and thank you for your understanding and support. OKX July 31, 2026