Onsemi — May 5, 2025 release

In addition, these measures are important components of management’s internal performance measurement and incentive and reward process, as they are used to assess the current and historical financial results of the business and for strategic decision making, preparing budgets, setting targets and forecasting future results. For our non-GAAP reporting, we are utilizing a projected and normalized non-GAAP effective tax rate of 16%. We calculate this non-GAAP effective tax rate on an annual basis. We expect to use this normalized non-GAAP effective tax rate of 16% through 2025, however, we may update this non-GAAP effective tax rate at any time for a variety of reasons, including, but not limited to, the rapidly evolving global tax environment, significant changes in our geographic earnings mix or changes to our strategy or business operations. Management presents these non-GAAP financial measures to enable investors and analysts to understand the results of operations of onsemi’s core businesses and, to the extent comparable, to compare our results of operations on a more consistent basis against those of other companies in our industry. Free Cash Flow The use of free cash flow allows management to evaluate, among other things, the ability of the Company to make interest or principal payments on its debt. Free cash flow is defined as the difference between cash flow from operating activities and capital expenditures disclosed under investing activities in the consolidated statement of cash flows. Free cash flow is not an alternative to cash flow from operating activities as a measure of liq