Vietnam SSC Fines CMH Group Executives VND 225M Each for Hidden CMS Trades

Overview

Vietnam’s State Securities Commission (SSC) fined two senior CMH Group (ticker CMS, HNX) executives VND 225 million each for concealing beneficial ownership while trading CMS shares through accounts held in other people’s names. The decisions, issued by the State Securities Commission Inspectorate, target Deputy CEO Tran Van Trung and Chief Accountant Dinh Thi Thuy, and put insider-disclosure compliance at the construction and materials group under scrutiny.

Key Facts

• Deputy CEO Tran Van Trung fined VND 225 million under Decision No. 626/QĐ-XPHC for concealing true ownership of a security to avoid information-disclosure obligations.
• Chief Accountant Dinh Thi Thuy fined VND 225 million under Decision No. 627/QĐ-XPHC on the same grounds.
• Trung used securities account No. 005C101444, registered in the name of Tran Ngoc Linh at MB Securities (MBS), to trade CMS shares between 13 January 2022 and 22 September 2023.
• Thuy used account No. 058C006567, registered in the name of Nguyen Thuy Dung at FPT Securities, to trade CMS shares between 3 December 2010 and 15 August 2024.
• Trung, born 1979, has been Deputy CEO of CMH Group since June 2015 and joined the board of directors in March 2025.
• Thuy, born 1979, has been Chief Accountant since March 2015 and also served as Deputy CEO from February 2014 to March 2026.
• Combined fines total VND 450 million, or roughly USD 18,000 at prevailing rates.

What Happened

The State Securities Commission Inspectorate issued two administrative penalty decisions covering securities-market violations. In Decision No. 626/QĐ-XPHC, the inspectorate found that Tran Van Trung, Deputy CEO of Công ty cổ phần Tập đoàn CMH Việt Nam (CMH Group), used a securities account opened at MB Securities in the name of Tran Ngoc Linh to buy and sell CMS shares over a period spanning January 2022 to September 2023. The stated purpose was to hide his true beneficial ownership of CMS shares and thereby avoid the disclosure obligations that attach to insiders.

A parallel decision, No. 627/QĐ-XPHC, applied the same penalty to Dinh Thi Thuy, the group’s Chief Accountant. According to the inspectorate, Thuy traded CMS shares through an account at FPT Securities registered in the name of Nguyen Thuy Dung, active from December 2010 until August 2024. Both executives were fined VND 225 million. The decisions were reported by An Ninh Tiền Tệ; the article does not disclose the volume or value of the shares traded through the nominee accounts, nor whether any profits were disgorged.

Market Context

CMS closed at VND 5,200 on 23 October 2026 on the Hà Nội Stock Exchange, placing the shares in the low-price tier of the HNX. CMH Group sits in the construction and materials sector, a segment sensitive to public-investment cycles and input-cost swings. The case reflects a broader tightening of SSC enforcement around beneficial ownership and related-party disclosure, an area where Vietnamese regulators have repeatedly flagged nominee-account trading by insiders as a gap in market transparency.

Strategic Significance

For long-term holders, the core issue is governance rather than the size of the fine, which is modest relative to the group’s scale. The involvement of both a board-level executive and the chief accountant, over periods as long as fourteen years in one case, points to weaknesses in internal controls around insider trading and disclosure. Companies with cleaner disclosure records may command a valuation premium as the SSC’s enforcement posture hardens, while CMS faces a credibility discount until it demonstrates remediation.

What to Watch

• Any CMH Group disclosure on internal trading-controls remediation or board changes following the penalties.
• SSC statements on whether the nominee-account trades are referred for further review or profit disgorgement.
• CMS periodic disclosure filings confirming the executives’ current shareholdings and any ownership changes.
• HNX trading liquidity and price reaction in CMS around the penalty announcement.
• Further SSC enforcement actions against insiders at other HNX-listed construction names.