On the other hand, most of the export value and the deficit due to the iPhone are attributed to imported parts and components from the third countries and have nothing to do with China. Chinese workers simply put all these parts and components together and contributed only $6.50 to each iPhone, about 3.6% of the total manufacturing cost (e.g. the shipping price). The traditional way of measuring trade credits all $178.98 to China when an iPhone is shipped to the US, thus exaggerating the export volume as well as the imbalance. Decomposing the value added along the value chain of the iPhone manufacturing suggest that, of the $2.0 billion iPhone export from China, 96.4% is actually the transfer from Germany ($326 million), Japan ($670 million), Korea($259 million), the US ($108 million) and others ($ 542 million). All of these countries are involved in the iPhone production chain."
Read the whole article by Yuqing Xing at vox.eu here: How the iPhone widens the US trade deficit with China