The company’s head unveiled a pledge of $600 billion in investments in the American manufacturing industry over the next four years, aimed at boosting domestic production and strengthening Apple’s supply chain.

Speaking with CNBC, Cook said: “We can’t be everywhere. I wish we could, but we are putting $600 billion to work in the next four years.

“And so it is an extraordinary commitment. And there’s 79 factories across the U.S. that will benefit from this.”

The Apple boss added this investment could encourage other companies to build their own factories in these communities, creating a “domino effect” for the American manufacturing industry.

Cook also said there will be “some surprises” for communities who do not yet know Apple will be bringing business to their areas.

Part of Apple’s expansion includes a $2.5 billion extension of the company’s partnership with Corning, expanding its glass factory in Kentucky - a facility that produces glass for all iPhones and Apple Watches.

Cook described the Corning investment as “a great start, and a very important one, because the glass is something you interface with all the time”.

The plan also involves investment in workforce development.

Apple is launching a “Manufacturing Academy” in Detroit and partnering with community colleges to train workers, particularly in areas tied to advanced manufacturing and supply-chain work.

Cook said that shareholders have reacted positively so far.

He explained: “I think most of our shareholders believe that we’re in the best position to make these type of decisions. I haven’t gotten a single complaint about the $600 billion.”

With Apple aiming to bring more production and associated economic activity back into US communities, the company is betting that this injection of capital and infrastructure will not just benefit its own operations, but also ignite broader manufacturing growth across the country.