Apple will invest an additional $100 billion in the United States over the next four years, lifting its total domestic commitment to $600 billion, Chief Executive Officer Tim Cook and President Donald Trump announced at the White House on 6 August. The spending is aimed at enlarging the iPhone maker’s manufacturing and supply-chain footprint and follows a February pledge of $500 billion in U.S. outlays. During the Oval Office event, Cook presented Trump with a U.S.-made circular Gorilla Glass plaque mounted on a 24-karat gold base, a symbolic gift marking what Apple calls its American Manufacturing Program. The new outlays will expand work with suppliers including glass maker Corning, equipment producer Applied Materials and chipmakers Texas Instruments and Broadcom, Apple said. Trump used the occasion to outline a planned 100 percent tariff on imported semiconductors, adding that companies building components in the United States would be exempt. Analysts said Apple’s expanded pledge could help the company avoid higher costs even though final iPhone assembly will remain overseas. Apple shares rose about 5 percent after the announcement, while Corning gained nearly 4 percent in late trading.