Zhiyuan Cui

Zhiyuan Cui is an executive director at 5Y Capital (五源资本) who led the firm's investment in discount retail chain Mingming Busy (鸣鸣很忙) . In January 2026, around the time of Mingming Busy's Hong Kong IPO, Cui published an investor note explaining why 5Y had led the company's A++ round in 2023—framing it not as a bet on "consumption downgrade" but as an experiment in retail efficiency . Cui's analysis emphasized that e-commerce saturation had created a window for new offline giants to emerge through "steady-state competition," and that Mingming Busy's low prices were surface evidence of deeper operational upgrades . The note was published alongside commentary from 5Y director Jin Jiangyun, who described the firm's early interest in discount retail dating back to 2020 .