In a case that highlights the increasingly perilous intersection of personal wealth and market regulation in China, Cao Peifeng, a prominent billionaire and co-controller of Yongjin Technology, has been sentenced to three years in prison with a four-year reprieve. The Jinhua Intermediate People's Court found Cao guilty of insider trading and leaking confidential information, ending a high-stakes legal drama that has trailed the stainless steel magnate for nearly two years. Despite her family’s massive fortune, which has peaked at 6.5 billion RMB (approximately $895 million) on the Hurun Rich List, the illicit gains at the heart of the case totaled less than 550,000 RMB.
This conviction serves as a stark reminder of the Chinese government’s tightening grip on capital market integrity. The court’s decision to impose a suspended sentence, alongside a 1 million RMB fine and the confiscation of all illegal profits, signals a zero-tolerance approach toward corporate insiders who treat public markets as personal playgrounds. For a woman of Cao’s stature, the reputational damage and the criminal record likely far outweigh the relatively paltry financial gains she secured through the illegal trades.
The scandal is not an isolated incident within Yongjin Technology, a leading producer of cold-rolled stainless steel. Documents reveal a persistent pattern of governance failures; Cao’s husband and the firm’s former chairman, Yu Jiqun, was previously flagged by regulators for 'window period' trading violations involving millions of dollars. These recurring breaches suggest a systemic disregard for compliance at the highest levels of the company, which specializes in materials for electronics, medical devices, and the automotive industry.
The legal fallout comes at a sensitive time for the group. In 2025, Yongjin reported a significant decline in profitability, with net income attributable to shareholders dropping by more than 31% despite a slight increase in overall revenue. While the first quarter of 2026 showed signs of a modest recovery, the company continues to struggle with negative operating cash flow. This financial volatility, coupled with the criminal conviction of a key controller, raises serious questions about the long-term stability and leadership of one of China’s industrial heavyweights.