Announcement on Adjustment of Minimum Price Accuracy for Perpetual Contracts by Ouyi Please note that the business lines or transaction pairs involved in this adjustment may not be supported in your country or region. Dear Ouyi users, in order to enhance market liquidity and optimize customer trading experience, Ouyi will adjust the minimum price accuracy of some perpetual contract trading pairs from 2:00 pm to 6:00 pm (UTC+8) on April 2, 2026. The specific adjustment plan is as follows: the minimum price accuracy of the following targets will be adjusted downwards, and trading will be suspended for 2 minutes. The minimum price accuracy before adjustment and after adjustment will be BZUSDT0.0010.01 at 3:01:00-3:02:59 CLUSDT0.0010.01 at 3:03:00-3:04:59. Risk warning: During the minimum price accuracy adjustment period, currency pairs with price accuracy adjusted downwards (such as from 0.0001 to 0.01) will be suspended for 2 minutes, and users will not be able to place orders, cancel orders, add margin, transfer funds, and other operations. Other targets will not be affected. Order and position processing rules for minimum price accuracy adjustment. Order processing rules: If the price accuracy is adjusted to a smaller value (such as from 0.0001 to 0.01), limit orders: If the price accuracy of the current pending order is greater than the adjusted price accuracy, the pending order will be cancelled; If the price accuracy of the current pending order is less than or equal to the adjusted price accuracy, the pending order will not be cancelled. For example, if the adjusted precision is 0.01, orders with an original commission price of 130.2442 will be cancelled, while orders with an original commission price of 130.2400 will not be cancelled after adjustment. All strategy commissions: If the price accuracy of the current strategy pending order is greater than the adjusted price accuracy, the pending order will be cancelled; If the price accuracy of the current pending order is less than or equal to the adjusted price accuracy, the pending order will not be cancelled. For example, a commission order with a commission price of 130.2442 will be revoked, while a commission order with a commission price of 130.2400 will not be revoked. Grid and Martingale strategies (including spot grid, contract grid, sky earth grid, infinite grid, spot Martingale, contract Martingale) will also be terminated if there is a cancellation of pending orders. After the cancellation of pending orders for other strategies (including signal strategy, fixed investment strategy, time weighted strategy, iceberg strategy, Tunbibao, arbitrage, take profit stop loss, moving take profit stop loss, and planned order), the corresponding strategies will not be affected and will be placed according to the adjusted latest price accuracy after resuming trading. If the price accuracy is adjusted further (such as from 0.01 to 0.0001), all current orders will not be affected. Note: After adjusting the price accuracy using the above rules for API users (such as from 0.0001 to 0.01), if API users still place orders with the previous price accuracy (0.0001), the system will automatically cut off the price accuracy, and the order can be successfully placed; Web and app users are unable to place orders with the old price accuracy. If the price accuracy of positions and historical orders is adjusted to a smaller level (such as from 0.0001 to 0.01), the prices of historical orders and positions of web and app users will be displayed according to the latest adjusted price accuracy, and the display logic will maintain the principle of "rounding up the original buy cut-off and rounding up the original sell order". The historical order and position prices of API users maintain their original accuracy. If the price accuracy is adjusted further (such as from 0.01 to 0.0001), it will be displayed according to the original accuracy. Please adjust your trading strategy in a timely manner according to the adjusted rules for users trading related currency pairs. We deeply apologize for any inconvenience caused to you. Ouyi will continue to provide you with better products and services! Ouyi Team March 30, 2026