The trade battle between the United States and China is still in the news today. Apple has long had its sights set on the production or part of it outside the Asian country and the problems are not current, the production costs in this country have been increasing and in Cupertino they want to remedy that.
As indicated in Reuters via Nikkei Asian Review the Cupertino company would be looking at the possibilities of moving part of its production out of China and specifically there is talk of between 15 and 30% of it. In this case companies like Inventec Corp that make MacBooks or iPads, Quanta Computer Inc or even Compal Electronics Inc among many others also have to position themselves on this situation since they are based in China and Apple could need them outside the country to manufacture their devices.
In any case, you can also look for suppliers outside of China, but it is much simpler if they agree to leave the country or take part of their production to other places to continue working with Apple, which is why they are interested in "getting along" with the apple company and vice versa.
What is clear is that all this is already moving and although it is true the companies in charge of manufacturing and assembling products for Apple have not commented on anything officially, everything seems to be pointing towards the departure of some of them out of China . You have to follow this issue closely and see how many of these companies are willing to take this step to continue working with Apple.