Apple estimates tariffs will add US$900 million to costs in June quarter; business in Vietnam to be affected

SAN FRANCISCO,/HANOI (Reuters): Apple has estimated that tariffs will add about US$900 million in costs to the quarter ending in June if rates do not change, with CEO Tim Cook outlining profound changes to the company's supply chain to minimise the impact of President Donald Trump's trade war.

Apple shares were down 3.8% after the company released quarterly results.