[OKX Extends 'Spark USDC On-Chain Earn' Campaign, Enjoy Up to 10% Annualized Yield] Odaily Planet Daily News - According to official information, OKX has extended the additional SPK token reward campaign for Spark USDC, with an added reward pool of 4,000,000 SPK. Users subscribing to this product can receive corresponding additional SPK reward yields, with no subscription limit, and enjoy up to 10% annualized yield (including the base yield rate from Spark Protocol and a 5.5% real-time campaign annualized yield rate). For users already participating in the Spark USDC campaign, there is no need to redeem their holdings to continue enjoying the campaign rewards. It is reported that users can access the OKX App, navigate to "Explore," select "On-Chain Earn," choose USDC, and set the yield source to Spark. After entering the subscription amount, complete the subscription process. Additionally, users can also access the OKX web platform, navigate to "Finance," select "On-Chain Earn," choose USDC, and set the yield source to Spark. After entering the subscription amount, complete the subscription process.