After a blockbuster quarter driven by the iPhone 12, Apple supplier TSMC says it will spend as much as $28 billion in capital spending in 2021, with much of that amount allocated to expanding its technological lead.

The company’s capital spending target is a massive increase from the previous year’s $17.2 billion target. About 80% of the spending in 2021 will be devoted toward advanced chip technologies such as 3nm manufacturing processes. Some of its capital spending will also be allocated toward building a plant in Arizona to help supply its U.S. clients.