Auro intersects 496.5m @ 0.76 g/t Au, 0.12% Cu at Santa Barbara

Vancouver, British Columbia--(Newsfile Corp. - August 18, 2026) - Auro Metals Inc. (TSXV: AURO) (OTCQB: AURFF) ("Auro" or the "Company"), is pleased to announce the fourth batch of assay results, of four drillholes, from the 2026 Phase I Drill Program at its 100%-owned Santa Barbara Gold-Copper Project (the "Project") located in the Zamora-Chinchipe Province in southeastern Ecuador. Since the commencement of the program, 22 drill holes have been completed and assay results of 14 holes (including the ten holes released on June 22, July 13 and July 28, 2026) have been received.

SUMMARY OF DRILL RESULTS

These four holes were drilled at the southern part of the known mineralized porphyry system ("Santa Barbara South"), which is currently believed to be the core area of the known porphyry mineralization system. Like the previously-reported holes from the 2026 Phase I Drill Program, these holes were designed to test the continuity of mineralization between historical drill intercepts and the extension of mineralization up-dip, down-dip, and at depth. Three of the four holes intersected wide mineralization starting from surface or near-surface, with highlights of the drilling as follows:

Drillhole DSB-61 intersected 496.5 metres ("m") grading 0.76 grams per tonne ("g/t") gold ("Au") and 0.12% copper ("Cu") from 88.5m to 585.0m, including 212.5m grading 1.12 g/t Au and 0.14% Cu from 117.0m to 329.5m, and 10.65m grading 0.59 g/t Au and 0.08% Cu from 709.95m to the end of hole.

Drillhole DSB-67 intersected 380m grading 0.71 g/t Au and 0.1% Cu from 76.5m right below overburden conglomerate.

Drillhole DSB-66 intersected 287m grading 0.51 g/t Au and 0.08% Cu from surface.

These drill results, along with the previously reported intercepts summarized in Table 1 below, continue to demonstrate that mineraliz