Guo Ghuangchang, a China Billionaire had gone missing. The company suspended its share after the Caixin magazine reported that the Fosun Group has “lost contact” with Guo, the magazine said Thursday.

According to people people familiar with the situation, who asked not to be identified as they weren’t authorized to speak publicly on the matter, Guo is 48 years old assisting to investigate the former Shanghai Vice Mayor Ai Baojun.

Sohu.com reported it last Friday earlier because of this matter that Guo is helping Ai’s probe. The fuson Group spokesman Chen Bo said that they have no information to be disclosed.

This report of Caixin has been circulating and rippled through markets in Shanghai,Hong kong And New York as investors sold shares linked to the conglomerate spanning businesses from insurance to pharmaceuticals. Until now there is no exact information of what was truly happen to this Chinese billionaire who had gone and lost contacts with it’s company and even friends. Gou is now on China’s 17th richest man with a net worth of $5.6 billion, according to the Bloomberg Billionaires Index.