On June 13, 2024, the regulatory authority determined that Mr. Nguyễn Công Hùng purchased 1 million shares of S99 without reporting or disclosing the planned transaction as required. This constitutes a violation of securities information disclosure regulations.
According to the decision issued on October 20, 2025, Mr. Hùng was fined 175 million VND. In addition to the fine, the State Securities Commission (SSC) suspended his securities trading activities for 4 months.
 Mr. Nguyễn Công Hùng, Chairman of the Board of Directors of S99 – Image: S99
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Following this transaction, Mr. Hùng’s ownership stake in S99 increased from 20.35% to 21.41%. By the end of June 2025, he held 21.76% of S99’s capital.
In July, Ms. Nguyễn Thị Thu Hường, Mr. Hùng’s sister, acquired an additional 2 million shares, raising her ownership to 6.59% and becoming the second-largest shareholder of S99, after Mr. Hùng. As a result, the group of shareholders directly related to Mr. Hùng now controls nearly 28.4% of the company’s charter capital.
Born in 1978, Mr. Nguyễn Công Hùng is a construction engineer who has been associated with S99—formerly known as Sông Đà 909 JSC—since the early 2000s. After holding various leadership positions, he became Chairman of the Board of Directors in 2015, when the company adopted its current name.
In 2017, Mr. Hùng owned only 3.66% of S99’s capital, but by the end of 2020, this figure had risen to 10.92%, and further to 20.92% by the end of 2021.
– 18:23 20/10/2025
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