During these trying times such as a global pandemic and increasing trade tensions between the world's two largest economies, China is determined to be self-reliant when it comes to new and innovative technology that is more than just made in China. And while it is a good thing for the Chinese to be self-reliant when it comes to critical components, the country is still young when it comes to innovation and thus still needs the expertise of international entities. Thus the desire to ensure global cooperation with the rest of the world despite the current situations.
Even with the desire to be more self-reliant, China is keen on making sure that the rest of the world will continue to do business with the Chinese. And that also means the United States. Chinese authorities are pushing back on the US-China "decoupling" since it is not beneficial for the two countries in the long run as any trade is better than no-trade.
https://www.cnbc.com/2020/10/30/china-talks-up-a-future-in-which-it-needs-collaboration-with-the-us-.html