On March 5th, Sui announced the official launch of its native stablecoin on the Sui blockchain, Sui Dollar (USDsui), on Wednesday. This stablecoin is issued by Bridge, and one of its core mechanisms is to redirect the profits generated from the reserve assets backing the stablecoin back into the Sui ecosystem, aiming to enhance DeFi liquidity and develop the token economy. Adinien Abidon, a co-founder of Mysten Labs, stated that the reserve assets backing USDsui mainly consist of U.S. Treasury bonds and high-liquidity assets, and that the profits generated are not fully retained by the issuer but can be used to buy back and burn circulating SUI tokens or invested in decentralized finance protocols and automated market systems to improve token exchange liquidity and stimulate ecosystem activity. Currently, the global stablecoin market size is approximately $310 billion, dominated by major dollar-pegged stablecoins such as USDT and USDC. In the traditional stablecoin model, the issuer typically earns profits from U.S. Treasury bonds without directly returning them to the blockchain network itself. Abidon pointed out that USDsui aims to change this model by redistributing the profits from real-world assets back into the blockchain ecosystem, making the stablecoin an important tool for driving network growth. USDsui was issued by Bridge, a company acquired by fintech firm Stripe in 2025. The plan to launch the native stablecoin on the Sui system was announced at the end of 2025, and it is now a reality, representing a key step in the network’s strategy to build infrastructure for stablecoins and DeFi. Abidon mentioned that the Sui ecosystem currently holds a certain amount of USDC and other stable assets, which can be directly converted into USDsui. Additionally, market participants, including institutional investors and hedge funds, have shown strong interest in the USDsui issuance, further strengthening the stablecoin’s initial liquidity base. The Sui blockchain was created by a team of former Meta engineers who participated in early digital currency projects like Libra/Diem. The core founding members of Mysten Labs also include George Danisess, Sam Blackshier, Evan Ching, and Kostas Kruptos Chalkias, all technical experts. The team believes that integrating profits from real-world finance with on-chain financial systems can create a more sustainable value cycle within DeFi. As stablecoins gradually expand into global payments, on-chain finance, and real-world assets, the launch of USDsui is seen as a significant step to strengthen the stablecoin infrastructure within the Sui system and promote DeFi liquidity growth.