Apple will commit an additional $100 billion to expand its U.S. operations, President Donald Trump is set to announce Wednesday alongside CEO Tim Cook at an Oval Office event, marking a major escalation in the administration's campaign to reshore key elements of the tech giant's global supply chain.

The new investment, which includes the launch of an "American Manufacturing Program," brings Apple's total U.S. commitment to $600 billion over the next four years, a White House official confirmed. The initiative aims to boost domestic production of critical components and incentivize other companies to localize their manufacturing operations.

"President Trump's America First economic agenda has secured trillions of dollars in investments that support American jobs and bolster American businesses," White House spokesperson Taylor Rogers said in a statement. "Today's announcement with Apple is another win for our manufacturing industry that will simultaneously help reshore the production of critical components to protect America's economic and national security."

The announcement comes as Trump intensifies pressure on companies producing high-value consumer goods abroad. In May, he posted on Truth Social, "I have long ago informed Tim Cook of Apple that I expect their iPhone's that will be sold in the United States of America will be manufactured and built in the United States, not India, or anyplace else. If that is not the case, a Tariff of at least 25% must be paid by Apple to the U.S."

Trump on Wednesday also announced a doubling of U.S. tariffs on Indian goods to 50%, citing India's continued purchases of Russian oil. While smartphones remain exempt from that tariff escalation under his "reciprocal" trade plan, the administration's ongoing pressure has complicated Apple's manufacturing strategy, which has increasingly relied on Indian facilities for iPhone assembly.

Apple declined requests for comment from both CNN and CNBC. Cook, however, has privately spoken with the Trump administration in recent months, including discussions around the financial strain imposed by tariffs. On Apple's most recent earnings call, Cook said the company expects to incur $1.1 billion in tariff-related costs during the September quarter.

Despite these headwinds, Apple shares rose 3.5% Wednesday morning, their largest intraday gain since May, although the stock remains down roughly 16% year-to-date.

As part of its previously announced $500 billion investment plan, Apple is building a manufacturing academy in Detroit and sourcing rare earth minerals - vital to smartphone production - from U.S.-based MP Materials. The new $100 billion tranche builds on that foundation with a stronger focus on reshoring the company's broader supply chain.

"Tim Cook is known to be the supply chain genius of technology," Ted Mortonson, technology strategist at Baird, told CNN. "And I think his whole supply chain team is well aware... before it happens, what the Trump administration is thinking and not thinking."