Bob Zhang Bo, co-founder and chief technology officer of Chinese ride-hailing giant Didi Chuxing, has left his position as chairman of Didi’s payment subsidiary while the parent company remains under a cybersecurity investigation at home and is in the process of delisting from the New York Stock Exchange. Zhang, a Didi co-founder, was no longer listed as the chairman of Didi Payment on Monday, according to information on corporate registry service Tianyancha. He had been in the position since January 2019. The reasons for the change remain unclear, as Didi has not issued a public statement about it and did…