四五运动
After the Tiananmen Incident in 1989, he started his career as an international business entrepreneur. In 1992, he established TIDETIME Group in Hong Kong. In 2005, TIDEiSun Group completed the acquisition of SunTV and restructured it into a wholly owned subsidiary media channel, dedicated to the production and broadcasting of independent documentaries and in-depth talk shows focusing on political, social, and economic issues in Chinese society.