VANCOUVER, British Columbia, April 20, 2023 — MAG Silver Corp. (TSX / NYSE American: MAG) (“MAG”, or the
“Company”) is pleased to announce that it has been informed by Fresnillo Plc (“Fresnillo”), the operator of the Juanicipio Mine (“Juanicipio”) (56% Fresnillo / 44% MAG), that concentrate production at the high-grade Juanicipio Mine has commenced with the shipment of its first commercial lead and zinc concentrates in late March 2023. Regular concentrate shipments have commenced and are planned going forward.