Exhibit 99.1 Raul Jacob Victor Pedraglio Bertin Galarreta +(602) 264-1375 southerncopper@southernperu.com.pe www.southerncoppercorp.com July 28, 2025 Southern Copper Corporation (NYSE and BVL: SCCO) Molybdenum production registered an increase of 3.5% in 2Q25 compared to 2Q24 as the result of higher production at all our mines, with the exception of La Caridad mine (-0.5%). On a YTD basis, mined zinc production rose 52.9% and mined silver and molybdenum production were up 14.6% and 5.9%, respectively. ● 2Q2 ...