The extra tariff added to all iPhones imported in the US may not have been about bringing manufacturing back to the US, but specifically to reprimand Tim Cook for skipping a Trump event.

"If that is not the case, a tariff of at least 25% must be paid by Apple to the US."Adding uncertainty to his ultimatum, Trump later said the tariff wouldn't apply to just the iPhone but also to any smartphone made outside the US.

Apple increased its exports of iPhones from India to the United States in April, with industry data showing a 76 percent increase compared to previous months. The jump came amid President Donald Trump's threats of a 25 percent tariff on iPhones made outside the U.