Chennai: Despite being exempted from tariffs, mobile phones, mainly driven by iPhones, have seen a drop of 58 per cent in exports to the US between May and August this year. While front loading has helped minimize the decline in the exports of products charged with reciprocal tariffs, sharp decline in mobile phones has intrigued many. However, amidst tariff uncertainties, mobile phone shipments to the US have declined 58 per cent between May and August this year. As per the data of the Commerce ministry, in May, mobile phone shipments accounted for $2294 million. As per the data from GTRI, in August, mobile phone exports were down to $964 million.