Aftermath Silver drills Berenguela Eastern and Challacollo targets in Chile

Vancouver, British Columbia--(Newsfile Corp. - July 22, 2026) - Aftermath Silver Ltd. (TSXV: AAG) (OTCQX: AAGFF) (the "Company" or "Aftermath Silver") is pleased to announce that drilling has commenced at the eastern limits of the Berenguela mineral resource to investigate high grade copper intercepts from Aftermath's previous drill programs. A limited drill program is also underway at the Challacollo Ag-Au project in Region 1 of northern Chile. Challacollo is a highly prospective low-sulphidation epithermal Ag-Au vein deposit containing a substantial silver resource (see Table 1 below).

Ralph Rushton, President and CEO of Aftermath, said: " We have started drilling the eastern copper target at Berenguela to investigate the potential for high grade copper mineralization beyond the limits of the existing MRE. Our previous drilling in 2024/2025 on the eastern margins of the MRE was extremely positive and with the copper spot price close to its all-time high I look forward to reporting on the results of the drilling later this year. Our team has also begun drilling at the Challacollo silver-gold project, which gives Aftermath further silver exposure in addition to our flagship Berenguela Project in Peru.

Our objective at Challacollo is to expand and increase the mineral resource and this is the first step toward that goal." Berenguela Eastern Copper Target Drilling has commenced on the eastern zone of Berenguela with 2 section lines planned 50 and 100m of the hole AFD139 which returned 69m @ 1.19% Cu + 78g/t Ag (see news release dated June 9, 2025). Drilling on the eastern limits of the MRE also returned the longest copper intercept drilled to date at Berenuela in hole AFD100 which assayed 156m grading 1.12% Cu, 290 g/t Ag and 7.3% Mn beginning at surface (see Aftermath's News release dated February 27, 2025.) The initial program allows for up to 1,000