Tesla chief executive Elon Musk is in China, as he makes his first trip to the world's second largest economy in over three years.
He arrived in Beijing on Tuesday and is also expected to visit Tesla's huge manufacturing plant in Shanghai.
Musk has not yet publicly commented on the trip, which comes amid tensions between the US and China.
He also declined to make any comments about his plans for the trip when asked by reporters as he left a hotel in Beijing on Wednesday.
The social media platform is banned in China but it can be accessed through VPNs, or Virtual Private Networks.