Tim Cook (left) and Jean Liu (in white suit) take a taxi hailed via Didi Chuxing on the morning of May 16, 2016. [Photo/ witter.com / tim_cook]

Cook's eighth visit to China, coming after his company's $1 billion investment in Chinese ride hailing app, Didi Chuxing. During this trip, Cook took a taxi hailed via Didi with Jean Liu, president of Didi, to meet app developers at an Apple store in Beijing.

At that meeting, Cook said, "China is one of the most vibrant places in the world. There are so many entrepreneurs now that they'll drive the next generation of innovation in China."