Apple just locked in $30 billion worth of chip purchases from Broadcom in a deal stretching through 2031. It’s the kind of number that makes you read it twice, roughly the GDP of Iceland, committed to a single supplier relationship.

The agreement covers custom silicon components and advanced wireless connectivity technologies. Broadcom, for its part, plans to invest $1.5 billion to expand its manufacturing facility in Fort Collins, Colorado, with production targets exceeding 15 billion US-made chips. Those chips include FBAR filters and other wireless components that end up inside the devices most of the planet carries in their pockets.

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This isn’t Apple’s first supplier commitment on American soil, but it is the largest under the company’s American Manufacturing Program. The deal fits within Apple’s broader $600 billion US investment plan, a figure so large it functions more like industrial policy than corporate strategy.

Tim Cook framed the partnership around the importance of US-based suppliers for maintaining product quality and efficiency.