He met staff and toured classrooms at the Yungu School in Hangzhou, the city in which Alibaba is headquartered, the newspaper said. Mr Ma was the most high-profile Chinese billionaire to disappear amid a crackdown on technology entrepreneurs. The 58-year-old has kept a low profile since criticising China's financial regulators in 2020. He stepped down as the chairman of Alibaba in September 2019. บาคาร่าโดยตรง