Exhibit 99.1 Investor Relations: Amanda Butler (216) 383-2534 Amanda_Butler@lincolnelectric.com LINCOLN ELECTRIC REPORTS FIRST QUARTER 2024 RESULTS First Quarter 2024 Highlights ◾ Net sales of $981 million ◾ Operating income margin of 16.8%; Adjusted operating income margin of 17.5% ◾ Record EPS of $2.14; record Adjusted EPS of $2.23 ◾ Cash flows from operations increase 8% to record $133 million ◾ Returned $152 million to shareholders through dividends and share repurchases CLEVELAND, Thursday, April 25, 2 ...