Tim Cook climbs the Great Wall on China's Chongyang Festival, Oct 21, 2015 [Photo/weibo.com]

Seventh visit: October 2015

On this seventh trip, Cook shared a photo of himself standing on the Great Wall to his followers on Sina Weibo, a Chinese micro-blogging website. He also posted photos of his visits to Apple stores and said, "Had a great visit with customers and our talented team at Apple Store Wangfujing today!"

The task of this trip was to push Apple's new clean energy projects in China as it announced its plan to build 200 megawatts of solar-energy projects in China.