A court in Vietnam has sentenced Trinh Van Quyet, the former chairman of property developer FLC, to 21 years in prison for fraud and stock manipulation. This verdict is part of a broader anti-corruption campaign aimed at influential business leaders. Quyet, 48, who also chairs the property and leisure company FLC Group and its subsidiary Bamboo Airways, along with his two sisters, was accused of manipulating the stocks of five companies, including FLC Stone Mining & Investment and FLC Mining Investment & Asset Management, and making an illegal profit of approximately 723.3 billion dong ($28.85 million). According to the state-affiliated news site VnExpress, Quyet received the harshest penalty as he was deemed the mastermind behind the fraud. The case also affected nearly 26,000 investors who purchased shares of FLC Faros Construction. Quyet's sisters, Trinh Thi Minh Hue and Trinh Thi Thuy Nga, were sentenced to 14 and eight years in prison respectively. Additionally, three officials from the Ho Chi Minh City Stock Exchange were given prison terms ranging from five to 6.5 years for abusing their positions and powers in the matter. FLC Group, which operates numerous resorts and golf courses across Vietnam, did not respond to requests for comment, nor did Reuters manage to contact a representative of Quyet. This ruling follows the death sentence handed to real estate mogul Truong My Lan earlier this year for her involvement in a $12.5-billion financial fraud, marking the largest such case in the country's history.