Singapore's largest money laundering case suspect Wang Shuiming may be extradited to China, with his accomplice being the mastermind behind the Hong Kong crypto platform scam AAX.

April 21 — Huobi HTX Global Advisor Justin Sun made a high-profile appearance at the HTX Genesis Hackathon in Hong Kong via a virtual event, where he shared his latest take on AI Agent technology’s application prospects in the Web3 space and the industry’s future trajectory. He noted that AI Agents will replace traditional interaction methods and become the core driver of the next phase of the Web3 ecosystem. He explained that past Web3 apps often came with a steep learning curve and complex on-chain interactions. With AI Agents, decentralized apps (DApps) will evolve from “manual operation” to “intent-driven” via natural language. That means AI Agents can autonomously understand user needs, automatically plan paths, and execute cross-chain transactions and settlements. This shift toward intelligence and autonomy will not only drastically boost on-chain productivity but also serve as a new breakthrough to break through Web3’s user growth bottleneck and lead the industry toward true

As of April 21, LookOnChain data shows Aave continues to face capital outflows, with its Total Value Locked (TVL) dropping to $16.432 billion. Cumulatively, the protocol has shed $9.94 billion since the outflow trend began. Conversely, Spark’s TVL has climbed to $4.552 billion—up $825 million—with some capital shifting from Aave to Spark.

April 21 — A new poll finds just 36% of Americans back authorizing a military strike against Iran, a figure barely changed since early April. Yet broad public concern over Trump’s temperament persists — even among Republicans. Trump’s approval rating is now tied to its lowest point of his term, set last month.

April 21 — Greek maritime risk firm MARISKS reports unidentified scammers are posing as Iranian authorities to send fraudulent messages to shipping firms stranded in the western Strait of Hormuz. They’re demanding payment in Bitcoin or USDT for a purported "customs clearance fee" to secure safe passage for the vessels through the strait. The firm noted at least one vessel was fired upon by Iranian ships on April 18 as it attempted to exit the strait—possibly falling prey to such a scam. Earlier reports indicated Iran proposed charging transit fees for vessels passing through the strait during ceasefire negotiations, with fees up to $2 million per oil tanker and crypto payments permitted. Meanwhile, the U.S. has maintained its blockade of Iranian ports, while Iran has alternately lifted and reinstated its own strait blockades. Currently, the strait is blocked, stranding hundreds of vessels and roughly 20,000 crew members. The U.S.-Iran temporary ceasefire agreement expires Apri

On April 21st, during the “Decoding Web 4.0: When AI Agents Take Over On-Chain Authority” roundtable, Infini founder Christian discussed the connection between stablecoins and AI agents. He noted stablecoins have no overly complex underlying logic—their core rests on two pillars: First, they serve as a U.S. dollar substitute, providing a universal currency for global users to settle transactions. Second, they emerged and gained widespread use in regions with underdeveloped financial infrastructure. As such, stablecoin demand stems more from emerging markets than developed countries with robust traditional financial systems. On the practical side, Christian highlighted stablecoins’ biggest value lies in overhauling payment and settlement efficiency. Traditional banking transactions cost $30–$50 per transfer and require a multi-week onboarding process, but current on-chain transactions now cost just a few dollars—making micropayments and high-frequency settlements feasible. Usin