Tectonic Metals Inc. announced metallurgical test results from the Company's Flat Gold Project (‘Flat'), an intrusion-hosted, bulk tonnage gold system located in southwestern Alaska. As part of the Company's first year exploration program at Flat, metallurgical samples were selected by Tectonic from historically drilled diamond core determined to be representative of the known drilled mineralization and five composites comprising of four oxide and one fresh sulphide were formed. The composites were then subject to conventional bottle roll, gravity, combined gravity and bottle roll and flotation metallurgical test work with the goal of de-risking the project and to provide insight into what metallurgical processing methods might be ideal.

The metallurgical results from the five composites returned gold recoveries averaging 95.6%, with one test returning a high of 99.1%, all with conventional cyanide leaching (bottle roll) of 75µm material. These exceptional results prompted Tectonic to conduct a follow-up bottle roll test at a coarser crush (6 mesh, 3360 µm), which potentially can be used as a proxy for heap leaching, and an average gold recovery of 88.5% was achieved with four of the five composites returning an average gold recovery of 94.0% and a high of 96.8%. The metallurgical results also demonstrate that the mineralization presently known at Flat is not grind sensitive, is extremely low in sulphur, non preg robbing and favourable to various gold extraction methods.

The success of Tectonic' metallurgical program warrants investigating column leach testing as a next step to determine if the mineralization at Flat is amenable to heap leaching. Flat Metallurgical Program – Composites: Tectonic's Metallurgical Test Work Program focused on Flat's primary target known as the Chicken Mountain Zone (‘CMZ') comprised of intrusion-related gold mineralization hosted within a zoned monzonitic intrusion, which forms part of the more extensive Late Cretaceous Flat volcano-plutonic complex intruding Cretaceous-aged Kuskokwim sediments. 55 drill holes (diamond and reverse circulation) were historically drilled at CMZ, all of which encountered gold mineralization.

Five composites (four oxide and one fresh non-oxidized sulphide) derived from 41 samples collected from 9 drill holes for a total weight of 119 kilograms were formed and determined to be representative of the known gold mineralization at Flat. The five composites were then subject to an array of metallurgical testing, including bottle roll testing at various crush sizes, gravity testing, combined bottle roll + gravity testing and flotation testing, to provide insight on what metallurgical processing methods might be ideal going forward. In total 5 composites were created from historic drill core samples taken from representative examples of mineralization from various intrusive phases, alteration assemblages and oxidation profiles within the two main historically drilled areas on Chicken Mountain.

Composites were blended following geochemical characterization, fire assaying and cyanide shake tests of each individual sample. Flat Metallurgical Program - Baseline 75um Metallurgical Test Work: Following gold (Au), sulphur (S) and carbon (C) head grade characterization of the 5 composites, aliquots were ground to K80 at 75µm and subjected to 1Kg tests for cyanide (CN) gold extraction (bottle roll), gravity concentration, combined gravity bottle roll and flotation recovery. Flat Metallurgical Program - Metallurgist and Laboratory The metallurgical test work was undertaken by Base Metallurgical Laboratories (Base Met Labs), Kamloops, British Colombia, under the supervision of Jake Lang, Principal Metallurgist.

Additionally, the program was conducted under the guidance of Tectonic's consulting Metallurgical Advisor, Jeet Basi, who has over 15 years of technical leadership experience in global public mining companies, including Newmont, Goldcorp and Teck Resources. Base Metallurgical Laboratories is a fully integrated mineral processing laboratory located in Kamloops BC. The facility incorporates metallurgical, mineralogy and analytical capabilities.

Base Met Labs is backed by experienced metallurgists with regards to flotation and cyanidation process flowsheet development and interpretation of mineralogical analyses.