China Merchants Securities Probe Prompts 23 IPO Halts China Merchants Securities is under investigation for violations in 2014, prompting suspensions of 23 IPOs it is sponsoring. China Merchants Securities is under investigation for violations in 2014, prompting suspensions of 23 IPOs it is sponsoring. BSE, China Merchants Securities, Chinext, CSRC, IPO, IPO sponsor, sponsor, SSE, STAR Market, SZSE Recommended for you PCAOB Picks Chinese Firms for First Audits Checks – Report China to Develop Chongqing into Green Finance Hub US, Chinese Authorities Sign Audit Cooperation Deal