A little under a year ago, Apple promised to invest $600 billion in the U.S. over a four-year period through an American Manufacturing Program (AMP). The company has today announced its largest single AMP commitment to date: a $30 billion Broadcom chip contract.

The iPhone maker says that the deal will help Broadcom expand its Colorado plant, and lead to the production of more than 15 billion US-made chips …

Broadcom had earlier announced an expanded partnership with Apple to develop and supply a range of custom chips, but the value of the contract had not been revealed at that point.

Broadcom said on Monday it has agreed to expand ​its partnership with Apple through 2031 to develop ‌and supply a range of custom chips

Apple has today provided more detail on the partnership.