First time posting anything in this forum. Hope I am not making any blunder.

I understand China is by far the largest importer of semicondutor chips. I wonder, however,
a) How much of those semiconductors are re-exported.
b) How much of those semiconductors are re-exported in foreign products which are just assembled in China, say for instance, HP computers or Apple phones, etc... Essentially, how much of those imported chips are imported without its purchase being decided by Chinese companies/individuals.
c) How much of those semiconductors are re-exported in products which are designed and manufactured by Chinese companies/individuals, say for instance, Oppo, Xiami, etc... phones
d) How much of those semiconductors are used in products which will be used by Chinese individuals/enterprizes.
My apologies in advance for anything I should not have done as far as this forum`s guidelines are concerned.
Good day everybody