Getting to Thailand between Nepal and china

Good morning,

I plan to travel in China from the 15th of August to the 31st. But I also plan to travel in Thailand from the 1st of August until my trip in China.

My travel will be :
Nepal to Thailand
Thailand to China

Is there any problems to apply for a Chinese entry permit here in Nepal (easier) ? I will have my plane tickets but not the Thailand's visa because I will get it when arriving in the country.

Cordially

M.Samouiller