November 21st. According to an official announcement, Huobi HTX will launch the "USDD Limited Time Benefit Third Round" special event from 18:00 on November 21st to 18:00 on December 1st (UTC+8). During the event, users who complete the event registration, open the USDD Yield Wallet, and switch their U-based contract account to Cross Margin mode can enjoy multiple benefits, such as sharing a $50,000 prize pool and Yield Wallet interest coupons. The event includes: 1. Users who register and open the USDD Yield Wallet and achieve a specified cumulative contract trading volume will receive a USDD Yield Wallet interest coupon, with a maximum interest rate of 10% and no limit on the principal amount for interest calculation; 2. Registered users who use USDD as collateral for contract trading for the first time, with a trading volume of not less than 100 USDT, will receive a $2 equivalent reward in HTX; 3. Users who use Cross Margin mode for contract trading and have a USDD balance in their U-based contract account of ≥100 USDD, with a cumulative contract trading volume of ≥10,000 USDT during the event, can participate in a ranking competition to share rewards based on their trading volume.