Exhibit 99.1 GFL Environmental Reports Third Quarter 2023 Results · Revenue of $1,890.0 million, increase of 10.3$530.3 million, increase of 12.0%; Net income from continuing operations of $18.3 million; Adjusted Net Income from continuing operations of$116.8 million · Adjusted EBITDA margin of 28.1%; Solid Waste Adjusted EBITDA margin of 31.4%; Environmental Services Adjusted ...