Calgary, Alberta--(Newsfile Corp. - June 10, 2026) - Fathom Nickel Inc. (CSE: FNI) (FSE: 6Q5) (OTCQB: FNICF) ( 'Fathom", or the " Company ") is pleased to announce that nickel-copper-cobalt assays from metasedimentary-hosted mineralization suggest a new geologic model for the historic Gochager Lake deposit and a greatly expanded geological footprint. Phase-2 drilling currently underway is further testing this new discovery and new geologic model. Ian Fraser, Fathom CEO and VP Exploration, stated, "Intersecting nickel-copper-cobalt in metasediments in drillhole GL26025 was a complete surprise. We have spent the last couple of weeks digesting this new information and have come to the realization that the metasedimentary rocks engulfing the "Gochager" intrusive rocks are now very prospective for nickel-copper-cobalt mineralization. The metasediment-hosted mineralization is the result of nickel-copper-cobalt being transposed from the original mafic intrusive rocks into the adjacent metasedimentary rocks. This makes the contact of mineralized metasediments with Gochager Lake intrusive rocks a new, very prospective exploration target. This development has introduced a new geological model for the historic Gochager Lake deposit and has expanded the project footprint tremendously. Specifically, this recent development is akin to a Thompson Nickel Belt geological model, where nickel-copper-cobalt mineralization occurs in both intrusive rocks and, in some instances, predominantly in metasedimentary rocks. We look forward to testing this new hypothesis during the current drill program." Table-1 GL26025 Metasedimentary-hosted Mineralization Drillhole From (m) To (m) Interval (m)* Ni wt%** Cu wt% Co wt% GL26025 132.04 132.45 0.41 1.10 0.23 0.12 within 132.04 133.81 1.77 0.49 0.20 0.05 within 126.59 133.81 7.22 0.34 0.15 0.04 GL26025 160.10 168.30 8.20 0.24 0.12 0.03   *Interval (m) are downhole intervals and not true thickness. Insufficient data currently to determine true thickness. **A ≥ 2000 ppm Ni cut off was used to calculate mineralized interval. The mineralized metasediments in GL26025 are in sharp contact with barren (<1000 ppm Ni) intrusive rock (gabbro) and form a metasedimentary package within gabbro measuring 79.10 meters (drillhole thickness). A strong borehole electromagnetic (BHEM) anomaly occurring at ~ 180 meters down the drillhole and positioned below and northeast of the drillhole is a high-priority Phase-2 drill target. The metasediments in the drillhole contain more nickel-copper-cobalt mineralization than the gabbroic rocks. This suggests the gabbro intrusive has been stripped of nickel-copper-cobalt and this mineralization now resides in the metasediments. Refer to Table-2 and Figure 1 for Phase-1 drillhole locations. Table-3 summarizes Phase-1 drillholes GL26019 - GL26024. Table-2 Drillhole Locations (NAD83 Zone 13) Drillhole Easting Northing Elevation ASL (m) Azimuth (°) Dip (°) Total Depth (m) GL26019 504194 6181373 401 135 -48 314 GL26020 503967 6180843 405 312 -48 347 GL26021 503418 6180964 405 120 -50 209 GL26022 502753 6180473 404 135 -48 302 GL26023 502566 6180460 405 135 -50 320 GL26024 502462 6180436 417 135 -50 400 GL26025 502739 6180613 409 135 -60 251 Total 2,143 meters   Table-3 Drillholes GL26019 - GL26024 Summary Drillhole Comments GL26019 Metasediments, no significant results, multiple strong off-hole conductors GL26020 Metasediments, no significant results, >80,000 Siemen off-hole conductor @ 160m to right of drillhole GL26021 Metasediments, no significant results, (up to 547 ppm Ni / 0.6m within mafic dyke @ 51.46-55.93m), weak off-hole conductor below hole @ 105m GL26022 Gabbro, no significant results, weakly mineralized zones (up to 3380 ppm Ni / 0.42m @ 75.37-75.79m), strong conductivity builds up to and beyond end of hole GL26023 Ultramafic intrusion and gabbro, no significant results, weakly mineralized zones (up to 5790 ppm Ni / 0.42m @ 178.28-178.7m), strong off-hole conductor located below hole @ 270m GL26024 Gabbro-metasediments, no significant results, weakly mineralized zones in gabbro (up to 2260 ppm Ni / 0.67m @36.27-36.94m) and in metasediments (1730 ppm Ni / 0.73m @132.8-133.53m and 1480 ppm Ni / 1.08m @ 355.13-356.21m), strong off-hole conductor below hole at 255m   Drillholes GL26019 and GL26020 were designed to test the source of the high nickel-in-soil anomaly at Target A (see Fathom press release dated February 24, 2026). Current interpretation indicates that the nickel-copper-cobalt mineralization, along with elevated magnesium and chrome in these mafic metasediments-the likely source of Anomaly A, is more extensive across the property than previously recognized. Their spatial association with nearby mineralized ultramafic and gabbroic intrusions is significant, and their geochemistry is comparable to the Ospwagan host rocks of the Thompson Nickel Belt deposits. Phase-1 drilling has expanded the Gochager mafic (gabbro)-