Elon Musk briefly appeared during the opening ceremony of the 2021 World Internet Conference in Wuzhen, China recently. During his appearance via video, Musk confirmed that Tesla would increase investment and R&D efforts in China. 

“Tesla will continue to expand our investment and R&D efforts in China. Tesla hopes to contribute to build a digitized future of shared benefits, responsibilities, and governance,” he said. 

https://www.teslarati.com/tesla-rd-china-elon-musk-update/