Guo Pei shows her design to Tim Cook in Beijing, August 15, 2016. [Photo/Weibo]

Before his ninth visit to China, in his latest interview with The Washington Post, Cook discussed his first five years in Apple, one of the world's most glaring spotlight companies, and talked about China.

"So as I look in the long term, I think China is an unbelievable market — not only from a demand point of view and the revenue potential there, but also as a great source of talent," Cook said, according to The Washington Post.

He said Apple has over a million and a half developers in China and the reach is unbelievable.

Answering to Apple's 33 percent down sales in China in the most recent quarter, Cook said, "There are, sort of, speed bumps now with the economy. In a year-ago quarter, we were up 112 percent. So I think you have to back up and put it in perspective. If you look at it over a two-year basis, we were up over 50 percent in the quarter."

In his eighth visit to China, Cook had met with Chinese developers and Liu Qing, president of Didi Chuxing, the largest ride-hailing service provider in China, after Apple announced its $1 billion investment in Didi Chuxing.