There is very little real evidence either way. It is possible the Chinese got the “idea” of writing from western Asia, and it is equally possible they came up with it independently. It seems to pop up whenever civilizations become sufficiently complex that record keeping becomes critical.
One possible exception is the Andean civilizations, which may actually be as old or even older than Sumer in the building of “cities.” If the quipu isn’t writing, they apparently never developed it at all, despite apparent trading contacts with Meso-America, which definitely did have writing.
If you can get your hands on an American Indian collection of hand "signs" you can go read just about any Chinese Shang Dynasty writing.
My understanding of he Qui-Pu is that it's part of a coded system that helps you recall oral messages. it's proved to be fairly impervious to any modern attempts at decoding. All you have to do is switch to viewing the Qui-Pu as a digital format "sign language" and it can probably be read. I'm simply not adept enough to try that but I think I can deal with most of the totemic symbol systems ~ which are more like STREET SIGNS and GRAVE MARKERS than they are generalized writing systems.
Ultimately ALL writing is based first on the normal parameters of the human body ~ and after that, the normal conditions of life.
And that shows up in Paleolithic China!
The trade routes were established early ~ not necessarily with stuff being carried by camels all the way from Syria to the Huang Ho, but at least in terms of ideas traded from area to area. Sumerian arrived in the Chinese core areas within a couple of centuries!
In later eras the Silk Road networked out the most energy efficient tracks, but at the time the idea of writing was being passed to the East the Silk Road was only a dream.