Odaily Planet Daily News: BitMart Contracts to Launch BUSDT. According to the official announcement, BitMart Contracts will launch the BUSDT perpetual contract on May 23, 2025, at 15:00 (UTC+8). $B (BUILDon) is a full-chain intelligent investment platform. $B is based on the A2A (Agent-to-Agent) architecture, enabling automation of overall research and investment cycles through on-chain data insights, asset analysis, and personalized strategies.