Custom Truck One Source 4th Quarter 2022 Investor Presentation March 14, 2023 CONFIDENTIAL DRAFT 1 2 This presentation includes certain financial measures that have not been prepared in a manner that complies with generally accepted accounting principles in the United States ("GAAP"), including, without limitation, EBITDA, Adjusted EBITDA, Pro Forma Adjusted EBITDA, Adjusted Gross Profit and Pro Forma Adjusted Gross Profit (collectively, the "non-GAAP financial measures"). These non-GAAP financial measures ...