He was also on the team that Tom Zhu, Musk’s right-hand man at Tesla at the time, brought from China to help fix issues at Gigafactory Texas. Today, Song confirmed that he is leaving Tesla. He confirmed this on his LinkedIn profile and in a letter to employees: Today is my last day at Tesla and I feel extremely fortunate to have worked and fought with everyone on this plot of land. Fei Wenjin, a recently promoted senior director of quality at the plant, will now be in charge of the factory, according to a Bloomberg report. Song is leaving as Tesla’s sales and production in China appear to be peaking with only Model 3 and Model Y currently being produced in the country, which happens to be the world’s largest EV market.