The biggest difference Apple has from other manufacturers is that it sources its materials and components from other manufacturers that operate throughout the globe. For example, its displays are mainly made in Japan by Japan Display and Sharp, and some are still made in South Korea by LG Display; whilst the Touch ID sensor found in its recent iPad and iPhone models are made in Taiwan by TSMC (Taiwan Semiconductor Manufacturing Company) and Xintec. In fact, Apple's list of suppliers stretches to more than 200 various suppliers located throughout the world.

Updated 24 November: Now that Donald Trump is the President of the United States, he has spoken directly to Tim Cook, CEO of Apple, to discuss bringing the manufacturing back to the USA. Trump is looking to provide 'very large tax cuts for corporations'. As reported by our US colleagues at Macworld the Mac Pro is already assembled in the USA, but that is also the least-selling product that Apple make. We don't see Apple moving all its manufacturing to the USA, but might have to move a part of it during Trump's presidential reign.