**[Announcement Regarding Adjustment of Tiered Margin Rules for Certain Contracts by OKX]** Dear OKX Users, To further enhance market liquidity and mitigate market risks, OKX plans to adjust the tiered margin rules for certain contracts on August 29, 2025, from 2:00 PM to 6:00 PM (UTC+8). Details of the adjustment plan are as follows: Please note that due to market conditions, the adjustment time for certain tokens may change or be postponed. Please refer to the **Tiered Margin Explanation** to confirm whether the adjustments for relevant tokens have been successfully implemented. **Risk Reminder** Due to recent significant market fluctuations, the maintenance margin rate for user positions may increase after the adjustment of tiered margin rules. To prevent forced liquidation caused by the rule adjustments, please promptly manage your risk by closing positions, reducing positions, or adding margin to lower the actual leverage ratio. OKX will continue to provide you with superior products and high-quality services! **OKX Team** August 26, 2025