Apple moved 600 tons of iPhones to the U.S. from India to shore up its supply in anticipation of tariffs. The company produces most of the supply of its marquee product, the iPhone, in China, but has recently increased production in India.

Apple is heavily reliant on China, which has seen its tariff rates continue to ramp up to a cumulative 145%. While the company has been working to diversify its supply chains, analysts say its left without any clear short-term options to quickly reduce tariff impacts.

President Donald Trump’s administration has been predicting its barrage of tariffs targeting China will push Apple into manufacturing the iPhone in the U.