Chinese media quoted Tianmu News from Zhejiang Province as saying that Ma appeared in public for the first time since October 24 last year.
Investors dropped $50 billion from Tesla Inc’s market value on Tuesday despite CEO Elon Musk’s promise to cut electric vehicle costs so radically that a $25,000 car that drives itself will be possible, but not for at least three years.
The United States has imposed restrictions on exports to China’s biggest chip maker SMIC after concluding risk, equipment supplied to it could be used for military purposes.