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[BitMart Contract Stock Zone to Launch Multiple Perpetual Contracts Including OPENSTOCKUSDT, CELHUSDT] Odaily Planet Daily News: According to the official announcement, BitMart Contracts will launch perpetual contracts for OPENSTOCKUSDT, CELHUSDT, DIASTOCKUSDT, CONLUSDT, MSTAmericaDT, ECHOUSDT, EUVUSDT, DISKUSDT, FWDIUSDT, and BNCUSDT on July 7, 2026, at 15:00 (UTC+8), supporting up to 20x leverage.