If you are seeking examples you might look into the production of polysilicon for solar energy wafers and tiles, a strageic koint kfor solar energy. and, indeed, solar energy in general. There appears to be the beginning of a bit of a counter-effort under way. The Biden adminstration has certainly seen the problem but we shall see how things turn out. Both China's behavior and our response are provocative to the other party. Everything is being weaponized