**[Hotcoin Announcement on Adjusting Contract Position Tier Limits]** Dear Users, To meet users' trading needs while avoiding excessive trading risks, Hotcoin will perform a non-downtime version update of the contract system at 03:30 (UTC+8) on September 3, 2025. After the update, the maximum contract limit will be adjusted from "contracts" to "position value." The maximum position value will depend on your order value + current position value + remaining available value. Specific parameters can be viewed on the position tier page. Additionally, the platform will calculate the maintenance margin for positions based on the maintenance margin rate corresponding to the tier of your position value. In other words, the larger the user's position, the higher the maintenance margin rate. Contract trading involves risks. Please assess your risk tolerance rationally and make prudent decisions. If you need assistance, you can contact official customer service through the app or web portal at any time. Thank you for your support and trust in Hotcoin! Hotcoin September 2, 2025