[OKX to Perform Maintenance on RFQ System on August 4, 2026] Dear OKX Users, To further enhance system performance and provide you with a better trading experience, OKX will perform maintenance on the Block Trading RFQ (Request for Quote) system from 18:30 to 19:30 (UTC+8) on August 4, 2026. Impact during the maintenance period: - The RFQ system will enter read-only (maintenance) mode. During this time, you will not be able to create new RFQs, submit or accept quotes, or complete block trades via the RFQ system. - You will still be able to view existing RFQs, quotes, and historical records as usual. - 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 activities, we recommend completing any ongoing RFQs and transactions before the maintenance begins. We sincerely apologize for any inconvenience caused and thank you for your understanding and support. OKX August 4, 2026 (UTC)