US
USDD is a USD-pegged stablecoin native to Tron, originally launched by the TRON DAO Reserve and later transitioned to a CDP-style design where users mint USDD against overcollateralized crypto deposits. Reserves include TRX, BTC, USDT, and other assets, with policy decisions handled through TRON DAO governance.
USDD is one of the larger stablecoins on Tron by circulating supply and is most commonly used inside the Tron ecosystem itself — JustLend, JustSwap, and SunSwap — alongside USDT-TRC20.