Tectonic Metals Drills 272 Metres of 0.50 g/t Au and 277 Metres of 0.49 g/t Au; Confirms Bulk-Tonnage Potential at Heap-Leachable Chicken Mountain, Flat Gold Project, Alaska Unconstrained Growth Potential: 3.3 km Drilled Mineralized Strike x 700 m Width x 300 m Vertical Depth and Remaining Open in All Directions100% Drill Success Continues: 191 of 191 Drill Holes Intersecting Gold Mineralization VANCOUVER, BC / ACCESS Newswire / February 5, 2026 / Tectonic Metals Inc. ("Tectonic" or the "Company") (TSXV:TECT)(OTCQB:TETOF) today announced final assay results from the 2025 drill program at Chicken Mountain. Today's results delivered thick, at or near-surface intercepts that reinforce Chicken Mountain as a bulk-tonnage, heap leachable Reduced Intrusion Related Gold System ("RIRGS") within the Company's flagship 99,800-acre Flat Gold Project ("Flat") in Southwest Alaska.The 2025 drilling program has successfully advanced Chicken Mountain from an exploration target into a kilometre-scale resource growth opportunity, expanding the continuously mineralized footprint and delineating higher-grade corridors that may support potential starter-pit development scenarios.Tectonic plans to resume drilling in early May 2026, and additional metallurgical test work is now underway, including 2-inch crush heap-leach column tests to investigate the viability of run-of-mine ("ROM") gold processing. A more detailed news release outlining the Company's 2026 plans and objectives is expected to be announced in the coming months.CEO Commentary"Chicken Mountain demonstrates a combination of scale, continuity and favorable metallurgy in a bulk-tonnage gold system. Unlike narrow vein deposits that rely on selective mining, this style of mineralization has the potential to support simpler, straightforward open-pit development, with broad, continuous zones that begin at surface and remain open in all directions."What differentiates Chicken Mountain is the convergence of three key value drivers. First, scale: we've defined approximately 3.3 kilometres of mineralized strike to date, with widths approaching 700 metres, while drill testing only a fraction of the mapped intrusive complex. Second, predictability: a 100% drill success rate across 191 holes demonstrates a fertile and strong mineralizing system that can be targeted effectively. Third, metallurgy: previously reported heap-leach recoveries of up to 96%, together with ongoing work evaluating run-of-mine potential, point to a processing profile with meaningful capital and operating advantages.""Within this large mineralized, envelope, we've identified multiple higher-grade corridors that could represent potential mining starter-pit opportunities. Beyond the intrusion itself, the hornfelsed sedimentary rocks surrounding Chicken Mountain represent an additional, untested and underexplored opportunity. At Black Creek, located 6 km away, drilling intersected 4.50 g/t Au over 48.77 m with 7.79 g/t Au over 24.38 m hosted in hornfels - the same prospective host rock that surrounds Chicken Mountain.""As we move forward, our focus is clear: continued step-out drilling to define the ultimate scale of the Chicken mountain RIRGS system, advancing metallurgical work toward a potential run-of-mine flowsheet, and progressing toward a maiden mineral resource estimate. Each of these workstreams is aimed at systematically de-risking Chicken Mountain while preserving its significant growth potential."Assay results from 16 drill holes are reported herein - 9 diamond core holes and 7 reverse circulation ("RC") holes - representing approximately 3,535 metres ("m") of drilling from the Company's 18,373 m 2025 program. Drilling targeted step-out expansion and early-stage resource delineation in the central area of the Chicken Mountain intrusion. All assay results from the Companies 2025 drill program are now reported.Drill HighlightsCMD25-031: Entire Drill Hole Mineralized0.70 g/t Au over 32.00 m, and15.05 g/t Au over 1.00 m, and1.14 g/t Au over 19.00 m, all within0.50 g/t Au over 272.00 mDiamond core drill hole; total hole length 303.58 mCMD25-028:Entire Drill Hole Mineralized1.02 g/t Au over 11.00 m, and1.27 g/t Au over 13.00 m, and1.16 g/t Au over 12.00 m, within0.74 g/t Au over 61.00 m, and all within0.49 g/t Au over 277.55 mEnded in mineralization; total hole length 327.6 m (diamond core drill hole)CMD25-0212.20 g/t Au over 14.00 m, within1.39 g/t Au over 24.00 m, all within0.44 g/t Au over 192.48 mEnded in mineralization with the final 5.00 m at 2.45 g/t Au; total hole length 297.48 m (diamond core drill hole)CMD25-0232.33 g/t Au over 10.00 m, within1.09 g/t Au over 29.00 m, all within0.59 g/t Au over 120.00 mDiamond core drill holes; total hole length 306.63 mCMD25-0190.82 g/t Au over 52.00 m, and1.18 g/t Au over 25.00 m, and0.92 g/t Au over 26.00 m, and0.92 g/t Au over 29.00 m, all within0.58 g/t Au over 186.06 mDiamond drill core total hole length 303.58 mCMR25-1185.18 g/t Au over 4.57 m, within2.0