Whether I require transit visa or not--Urgent

Hi,
Hope you are doing good. I am an Indian citizen with Indian Passport having F1 student visa in USA. I am writing you to inquire about 'requirement of transit G'. My flight will be through China Eastern Airlines, from Chicago to Shanghai, then Shanghai to Kunming, then Kunming to Kolkata, India. I have also return ticket through the same route.

First Chicago to Shanghai
My layover time in Shanghai is 1 h 50 minutes.
Then Shanghai to Kunming
layover in Kunming is 9 hr 15 minutes.
Then Kunming to Kolkata

Then return trip
Kolkata to Kunming
layover 3hr 35 minutes in Kunming
Then Kunming to Youngjhou
50 minute layover in Youngjhou
Then Youngjhou to Shanghai
11hr 15 minutes lay over in Shanghai


Please let me know if transit G is needed in my case.

Thanks
Sayeed