Announcement from Ouyi on Launching Zcash (ZEC) Spot Trading

This is a general announcement, and the availability of tokens or products may vary by region. Please check the details in the application. Dear Ouyi user: Ouyi is about to launch Zcash (ZEC), and the specific schedule is as follows: Online Time * ZEC Open Deposit Time: November 23, 2025 13:45 (UTC+8) *ZEC early order placement period: November 24, 2025 from 19:00 to 20:00 (UTC+8) *ZEC/USDT spot trading opening time: 20:00 on November 24, 2025 (UTC+8) *ZEC Open Withdrawal Time: 22:00, November 23, 2025 (UTC+8) Risk control rules for spot opening Limit rule: During pre order placement and continuous trading periods, the platform will activate an index based limit mechanism. Index based limit price calculation rules: Stage | Maximum Purchase Limit |Sell order minimum price| Pre order pending | Index × (1+J) | Index × (1-J)| Within 10 minutes before the launch of the new coin | Index x (1+X) | Index x (1-X)| 10 minutes after the launch of the new coin | Min [Max (Index, Index x (1+Y)+average premium over the past 2 minutes), Index x (1+Z)] | Max [Min (Index, Index x (1-Y)+average premium over the past 2 minutes), Index x (1-Z)]| Attention: The platform may adjust parameters J, X, Y, Z or switch limit calculation rules based on market conditions, and adjustments will not be notified separately. Please visit:/trade market/info/sport to view real-time rule details. Project Introduction: Zcash is a cryptocurrency that emphasizes privacy protection and utilizes zero knowledge cryptography to achieve anonymous value transfer. *English full name: Zcash *English abbreviation: ZEC *Currency Network: Zcash Chain *View ZEC prices: https://www.okx.com/price/zcash-zec Deposit USDT immediately to prepare for ZEC/USDT spot trading: Ouyi will continue to provide you with better products and services! Ouyi team November 23, 2025 (OKX)