Apple confirmed in late September that it's manufacturing the redesigned Mac Pro in its Austin, Texas plant. That might have been partly enabled by securing exemptions from Trump's China tariffs for 10 out of 15 Mac Pro components made in the Asian country. What happened to the other five, you ask? Well, according Bloomberg, the US Trade Representative's office has refused to grant Apple's requests for the rest of the items. That means those five components, including the computer's optional wheels, will be subject to the 25 percent tariff imposed on goods imported from China.