Announcement from Ouyi on the Adjustment of Rate Currency Pair Grouping Dear Ouyi users, we are about to make a comprehensive adjustment to the grouping structure of rate currency pairs in the spot and contract markets. The change is scheduled to take effect on June 1, 2026 from 14:00-16:00 (UTC+8). This announcement is intended to inform you in advance and help you understand the changes. Please read this notice carefully to understand the impact of the above adjustments on your trading activities. Please note: Ouyi reserves the right to modify or postpone the effective date of the above rate changes as needed. Please always refer to the Ouyi rate page in your region for the latest and most accurate information. If the effective date changes, no further notice or reminder will be given. The main changes include the grouping structure of spot and contract markets: Spot Group - Definition of Group Description Trading Pair Group 1 Head Trading Pair ADA-USDT, BTC-USD, BTC-USDT, DOGE-USDT, ETH-USD, ETH-USDT, HYPE-USDT, LTC-USDT, PEPE-USDT, PUMP-USDT, SOL-USDT, SUI-USDT, XAUT-USDT, XRP-USDT Active trading pairs in Group 2 AAVE-USDT, APE-USDT, APT-USDT, ARB-USDT, ASTER-USDT, AVAX-USDT, AXS-USDT, BASED-USDT, BCH-USDT, BIO-USDT, BNB-USDT, BONK-USDT, CC-USDT, CFG-USDT, CFX-USDT, CHIP-USD, CHIP-USDT, CHZ-USDT, CORE-USDT, DASH-USDT, DOT-USDT, DYDX-USDT, EDGE-USD, EDGE-USDT, ENA-USDT, ENJ-USDT, ETC-USDT, ETHFI-USDT, FIL-USDT, GRASS-USD, GRASS-USDT, HBAR-USDT, HUMA-USDT, ICP-USDT, IP-USDT, KAT-USDT, KITE-USDT, LINK-USDT, LIT-USDT, MEGA-USD, MEGA-USDT, MERL-USDT, MON-USD, MON-USDT, MOODENG-USDT, NEAR-USDT, NIGHT-USDT, OFC-USD, OFC-USDT, OKB-USDT, ONDO-USDT, ONT-USDT, OP-USDT, ORDI-USDT, PAXG-USDT, PENGU-USDT, PI-USDT, POL-USDT, RENDER-USDT, ROBO-USDT, SHIB-USDT, SOL-USD, SPACE-USDT, SPK-USDT, STETH-USDT, STRK-USDT, TON-USDT, TRUMP-USDT, TRX-USDT, UNI-USDT, USDT-USD, VIRTUAL-USDT, W-USDT, WIF-USDT, WLD-USDT, WLFI-USDT, XLM-USDT, XPL-USDT, ZAMA-USDT, ZEC-USDT, ZRO-USDT Group 3: All other trading pairs on the spot market. Please note that not all trading pairs are available in all jurisdictions, and their availability is subject to applicable laws and regulations, which vary by jurisdiction. Due to the constant availability and updates of coin pairs, this coin pair is for reference only. For the latest applicable coin pair rates, please refer to OpenAPI or the www.(((okx.com))/bees page. Contract Group - Define Group Description Trading Pair Group 1 Head Trading Pair ADA-USDT, BTC-USD, BTC-USDT, BZ-USDT, CL-USDT, DOGE-USDT, ETH-USD, ETH-USDT, HYPE-USDT, LTC-USDT, PEPE-USDT, PUMP-USDT, RIVER-USDT, SOL-USD, SOL-USDT, SUI-USDT, XAG-USDT, XAU-USDT, XRP-USDT All other trading pairs in Group 2. Please note that the following 14 XPERP contracts are currently located in Group 1 and will be migrated to Group 2 starting from June 1, 2026 ADA-USD UM XPERP、BTC-USD UM XPERP、BZ-USD UM XPERP、CL-USD UM XPERP、DOGE-USD UM XPERP、ETH-USD UM XPERP、LTC-USD UM XPERP、PEPE-USD UM XPERP、PUMP-USD UM XPERP、SOL-USD UM XPERP、SUI-USD UM XPERP、XAG-USD UM XPERP、XAU-USD UM XPERP、XRP-USD UM XPERP。 Please note that not all trading pairs are available in all jurisdictions, and the availability of trading pairs is subject to applicable laws and regulations, which vary by jurisdiction. Due to the constant availability and updates of coin pairs, this coin pair is for reference only. For the latest applicable coin pair rates, please refer to OpenAPI or the www.(((okx.com))/bees page. Users trading related currency pairs are requested to adjust their trading strategies in a timely manner according to the adjusted rules. If you have any questions about the above changes, please visit www.(((okx.com))/helpcenter or contact the Ouyi customer support team through the in app customer service function. If institutions and VIP clients need assistance, they can do so through your existing OKX Telegram group, @ OKX_Institutions Telegram group, by sending an email to institutional @ (((okx. com)), or by contacting your account manager. Thank you for your continued support. Ouyi team risk warning: The above overview and related information are for reference and educational purposes only, and some of the content may be provided by third parties rather than OKX. OKX does not guarantee the accuracy or completeness of any information described in this article, and such information does not constitute any representations, warranties, or any form of financial, investment, or other advice made by OKX. This information may not be suitable for all individuals and should not be used as a basis for trading by specific investors, nor should it constitute or be interpreted as any offer, recommendation, or solicitation. The above information also does not apply to individuals residing in jurisdictions where providing such information would violate the laws or regulations of their jurisdiction. Digital assets are highly speculative and accompanied by high volatility, which may become illiquid at any time, and investors may also lose their entire investment value. Before trading any digital asset, you should conduct your own research and evaluate your risk tolerance. OKX shall not be liable for any losses incurred by you as a result of trading digital assets. You are responsible for understanding and complying with applicable local laws and regulations on your own. For more information, please refer to the OKX Terms of Service and Risk Disclosure and Disclaimer.