Apple will invest an additional $100 billion in US manufacturing, President Donald Trump and Chief Executive Officer Tim Cook said during an Oval Office announcement. The pledge lifts the company’s planned domestic spending to about $600 billion over the next four years, expanding on a $500 billion commitment unveiled in February. The spending will be channelled through a newly created American Manufacturing Program aimed at moving more of Apple’s supply chain onshore and shielding the iPhone maker from trade penalties. Trump, who has threatened a 100 % tariff on imported products containing semiconductors, indicated that companies building components in the United States would be exempt from the levy, positioning Apple’s expanded outlay as a path to avoid future duties on flagship devices. As an early plank of the programme, Apple and longtime supplier Corning will invest $2.5 billion to produce all iPhone and Apple Watch cover glass at Corning’s Harrodsburg, Kentucky plant. Corning will dedicate the facility entirely to Apple work, create what it calls the world’s largest smartphone-glass production line and enlarge its Kentucky workforce by roughly 50 %. Analysts said the initiative, which follows Apple’s promise to add 20,000 US jobs, helps the company pre-empt tariff risks while reinforcing political ties with Washington. Apple shares rose about 4–5 % after news of the expanded investment broke, while Corning gained nearly 4 % in late trading.