Exhibit 99.1 Atkore Inc. Announces Third Quarter 2024 Results • Net sales of 822.4million,down10.51.80 versus prior year to 3.33;Adjustednetincomeperdilutedsharedecreasedby1.92 versus prior year to 3.80•Netincomedecreasedby77.9 million versus prior year to 123.4million;AdjustedEBITDAdecreasedby64.1 million versus prior year to 206.1million•Full−yearAdjustedEBITDAoutlookadjustedto772 - $782 million; Adj ...