Confirmation Of Geological-Mineralized Continuity Between Alpha Bowl & Chicken Mountain

VANCOUVER – Tectonic Metals Inc. reported on drill holes completed during the 2025 drill campaign at Alpha Bowl, located within the Company’s flagship ~99,800 acre Flat Gold Project in Southwest Alaska. The 24 drill holes reported herein – 9 diamond core holes and 15 reverse circulation (RC) holes – represent approximately 4,800 metres (m) of drilling from the Company’s 18,373 m 2025 program. All holes intersected gold mineralization, returning grades of up to 25.16 g/t Au, with 14 holes collaring in mineralization and 10 holes ending in mineralization, including the diamond drill hole CMD25-015, drilled to a depth of 392 metres.
These results confirm geological and mineralized continuity between Alpha Bowl and Chicken Mountain, establishing a gold system extending more than 3 kilometres along strike that remains open at depth and in all directions. Drilling continues to expand and define Alpha Bowl as a coherent three-dimensional mineralized body measuring approximately 820 metres along strike, 600 metres in width, and extending to at least 400 metres depth.
Alpha Bowl represents a significant exploration success and highlights the gold resource potential that Flat can deliver with systematic drilling. Prior to 2024, this target had never been drill tested in the history of the Flat Gold Project, despite hosting Flat Creek, one of Alaska’s richest placer producing creeks with over 650,000 ounces of recorded placer gold production.
Alpha Bowl is primarily blind to surface with limited to no outcrop exposure or direct surface expression. Through systematic geological interpretation, geophysical targeting and strategic drilling, Tectonic executed a drill program in 2024 yielding a brand-new discovery of 1.22 g/t Au over 65.53 m , including 6.01 g/t Au over 6.1 m with 21.72 g/t Au over 1.52 m.
Follow up 2025 step-out drilling on this discovery hole returned 2.23 g/t Au over 41.15 m , including 4.00 g/t Au over 21.34 m (see News Release, September 10, 2025), testing the eastern edge of the target where mineralization remains wide open. In less than twelve months, Alpha Bowl has evolved from a blind drill target into a volumetrically significant gold system. The confirmed connection to Chicken Mountain establishes a district-scale mineralized corridor at Flat, reinforcing the project’s potential as a large, bulk-tonnage, reduced intrusion-related gold system (RIRGS) and supporting continued systematic drill expansion. Alpha Bowl is now confirmed via drilling as the northern extension of the Chicken Mountain intrusion, creating a continuous, coherent, 3-kilometer mineralized corridor from Chicken Mountain through the Adit Zone to the Alpha Bowl Zone. This continuity is fundamental to resource estimation and for consideration during the preliminary resource estimation study planned for late 2026.