Online reported that on Thursday, Apple (AAPL.O) estimated that if global tariffs remain unchanged, costs for the fiscal quarter ending June will increase by about $900 million. Apple (AAPL.O)CEO Cook said on an earnings conference call that Apple believes the impact of the tariffs on the second fiscal quarter is "limited" because the company has shifted its supply chain and inventory. "But for the quarter ending June (fiscal third quarter), assuming that current global tariff rates, policies and implementation remain unchanged for the rest of the quarter, and that there are no new tariffs, we estimate the impact will increase our costs by $900 million," Cook said. In addition, Cook made it clear that the company was using U.S. suppliers. He expressed support for Apple's plan to spend $500 billion over four years, in part to expand teams and facilities in Arizona, Nevada, Iowa, Oregon, North Carolina and other places. "We expect to source more than 19 billion chips from more than a dozen states, including tens of thousands of advanced chips produced in Arizona this year," Cook said.