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First Atlantic Nickel Announces Expanded 4-Kilometer Strike Length at RPM Zone from DTR Surface Sampling at Pipestone XL Nickel Alloy Project Grand Falls-Windsor, Newfoundland and Labrador

Exploration Programs

First Atlantic Nickel Announces Expanded 4-Kilometer Strike Length at RPM Zone from

DTR Surface Sampling at Pipestone XL Nickel Alloy Project

Grand Falls-Windsor, Newfoundland and Labrador – October 21, 2025 – Globe Newswire –

First Atlantic Nickel Corp. (TSX -V: FAN) (OTCQB: FANCF) (FSE: P21) ("First Atlantic" or the

"Company") is pleased to report that recent Davis Tube Recovery ( DTR) surface sampling and

geological mapping has successfully expanded the RPM Zone target area to a continuous 4-kilometer

strike length within the 30-kilometer nickel trend at its Pipestone XL Nickel Alloy Project in central

Newfoundland. The new results extend the known mineralization footprint approximately 2 kilometers

north of the previously defined 2-kilometer drill -defined RPM Zone, where 800 meters of drilling has

already confirmed awaruite mineralization over a north-south strike length. This newly identified northern

extension, designated Exploration Priority 1 (See Figure 1) , demonstrates continuity of awaruite nickel

mineralization based on DTR surface sampling and detailed geological mapping.

The surface sampling program has returned consistent, positive magnetically recoverable DTR nickel

values over a larger area than previously outlined. DTR Surface sample results from the northern

extension (Figure 1 - Exploration Priority 1 Area) are comparable to those from the initial RPM discovery

area, where drill holes AN-24-05 and AN-25-06 returned an average DTR grade of 0.12% magnetically

recoverable nickel in drill core. Integration of surface sampling, improved geological mapping, and

Phase 2X drilling has refined the geological model and identified a westward-dipping body of awaruite

nickel mineralization. Based on this understanding, future drilling at the Pipestone XL Nickel Project will

target eastward to cross the true width of the mineralized zone. This approach will be applied across

the project including at the RPM Zone extension and the Super Gulp Zone (~10 kilometers north of the

RPM Zone discovery), where it will correct prior westward drilling that failed to optimally test the

westward-dipping awaruite structure.

HIGHLIGHTS:

● 4-Kilometer Strike Length Outlined at RPM Zone: Surface DTR sampling and geological

mapping have outlined continuous mineralization creating a 4 km target area at the RPM Zone

(RPM, RPM North, and RPM South). This target area combines the previously defined 2 km drill

target area with a 2 km north-south extension.

● Southern RPM Extension Discovered: Areas previously mapped southeast of the RPM Zone

as submarine mafic to felsic volcanics have now been confirmed as ultramafic peridotites. DTR

sampling from small islands outcropping in shallow water cover in Pipestone Pond returned

positive results, extending awaruite mineralization approximately ~1 km south of the RPM Zone.

● Westward-Dipping District Structure Defined: Phase 2X drilling and mapping have delineated

a westward-dipping ultramafic structure hosting awaruite nickel mineralization within

serpentinized peridotite. Future drilling will be oriented eastward to drill across the mineralized

body.

● Regional Deformation Zone Identified: Interpretation of a northeast-southwest trending

deformation structure beneath Pipestone Pond provides a new structural framework and opens

additional exploration opportunities for both north-south strike extensions and further expansion

westward of Pipestone Pond.

● Western Sampling Increases RPM Zone Target Width: Positive DTR results west of

Pipestone Pond expand the RPM Zone potential width to ~1.2 kilometers, significantly broader

than the 750-meter width currently defined in Section 2.

● DTR Surface Sampling Proves Effective: Surface sampling remains a reliable method for drill

targeting, with drill cores typically yielding DTR nickel grades multiple times higher than

weathered surface samples.

● Super Gulp: Company geologists have completed additional mapping and sampling at Super

Gulp (~10 kilometers north of the RPM Zone). Future eastward-oriented drilling is planned to

retest the target area.

● Phase 2X Assay & DTR Drill Results: Additional whole rock assay and DTR Results from

Phase 2X drill core are anticipated over the coming weeks.

For further information, questions, or investor inquiries, please contact Rob Guzman at First

Atlantic Nickel by phone at +1-844-592-6337 or via email at [email protected]

NORTHERN EXTENSION - INCREASES RPM ZONE STRIKE LENGTH TO 4 KILOMETERS

The Company's systematic DTR surface sampling program has successfully doubled the strike length

of the RPM Zone target area to approximately 4 kilometers. The existing, well -defined drill target area

spans ~2 kilometers north-south, where drilling has confirmed awaruite mineralization over 800 meters

to date. Recent DTR surface sampling and geological mapping have outlined an additional ~2 kilometers

of continuous mineralization further north, now designated as Exploration Priority 1 (See Figure 1), with

magnetically recoverable nickel grades comparable to those from the initial RPM Zone Discovery Area.

This creates a continuous 4-kilometer target zone along strike throughout the RPM Zone.

Figure 1: RPM Zone Area Map with Surface Sample DTR Nickel Results Outlining Larger Target

Areas.

SOUTHERN EXTENSION - NEW DISCOVERY IN PREVIOUSLY MISIDENTIFIED ROCK

UNITS

Surface sampling has identified a ~1-kilometer southern extension of the RPM Zone in areas that were

previously mapped as submarine mafic to felsic volcanics. Company geologists have now reclassified

these units as ultramafic peridotites hosting awaruite mineralization. The sampling program tested small

islands and outcrops in and around shallow water cover in Pipestone Pond, where positive DTR results,

comparable to those from the main RPM Zone, highlight the potential for additional mineralization. This

newly defined area has been designated as Exploration Priority 2 (See Figure 1).

EXPANSION POTENTIAL WEST OF PIPESTONE POND

Positive DTR results from peridotite outcrops west of Pipestone Pond have expanded the potential RPM

target width to approximately 1.2 kilometers, compared to the ~750-meters currently drill-defined on line

Section S2 (Holes AN -24-05 to AN -25-07) (See Figure 2) . Surface samples from this western area

returned positive magnetically recoverable nickel values comparable to surface results near hole AN -

24-05, which intersected 351 meters grading 0.12% magnetically recoverable nickel in drilling. These

results demonstrate the potential for westward expansion of the RPM Zone into areas beneath and west

of Pipestone Pond that have not yet been drill tested.

STRUCTURAL INTERPRETATION - WESTWARD-DIPPING STRUCTURE DEFINED

Phase 2X drilling has provided a major advancement in understanding the geometry of the ultramafic

body hosting awaruite mineralization. The data indicates that the harzburgite-dominant peridotite unit

dips steeply to the west, meaning that eastward-orientated drilling will be required to effectively test the

true width of the mineralized awaruite body. Previous drilling orientated westward, including the single

hole at Super Gulp, may have followed along mineralized layers or lower -grade halos rather than

intersecting them perpendicularly. This refined structural model will significantly improve the

effectiveness of future drilling, ensuring holes cross-cut the mineralized awaruite body.

Figure 2: RPM Zone Area Geology Map with Surface Sample DTR Nickel Results Outlining

Larger Target Areas.

REGIONAL DEFORMATION STRUCTURE UNDER PIPESTONE POND

Company geologists have interpreted a large regional deformation structure trending northeast-

southwest throughout the Pipestone Ophiolite Complex. This fault-controlled structure, which lies

beneath shallow water cover in Pipestone Pond, has incorporated small blocks or wedges of sediments

into contact with the larger ultramafic units through intense faulting. The deformation zone is positioned

beneath Pipestone Pond.

This structure represents a compelling opportunity for expansion, as fault structures within this zone

could develop areas of concentrated nickel mineralization due to increased fluid flow. This enhanced

fluid circulation promotes serpentinization, a criti cal process necessary for the formation of awaruite

nickel alloy. Positive DTR samples delineate the western shore of Pipestone Pond as a 1.8-kilometer-

long target area (See Figure 2). With the new interpretation of the westward-dipping structure, eastward-

oriented drill holes collared from the western shore of Pipestone Pond are expected to test both the

deformation zone and the underlying awaruite-enriched RPM structure, providing an opportunity to

significantly expand the interpreted width of the mineralized system.

Figure 3: Project Geologist Mike Piller collecting DTR surface samples at Pipestone XL Nickel

Alloy Project.

Figure 4: Surface sampling west of Pipestone Pond, where awaruite-bearing peridotite samples

returned positive DTR nickel values similar to the RPM Zone.

Table 1: Pipestone XL Project - RPM Zone Additional Phase 2X Drill Results Pending

Drill Hole Zone Section

From

meters

To

meters

Interval

meters

Magnetically

Recovered

(DTR)

Nickel %

Magnetic

Concentrate

Nickel

Grade (Ni %)

Mass

Pull (%)

Comment

AN 24 - 02 RPM S1 11.0 394.1 383.1 0.13 1.37 9.50 NR - March 12,

2025

AN 24 - 03 RPM S1 18.0 234.0 216.0 0.11 1.32 9.12 NR - April 15,

2025

AN 24 - 04 RPM S1 12.0 378.0 366.0 0.14 1.46 9.53 NR- June 24,

2025

AN 24 - 05 RPM S2 6.0 357.0 351.0 0.12 1.47 8.21 NR - July 9, 2025

AN 25 - 06 RPM S2 5.65 453 447.35 0.11 1.27 9.02 NR - August 12,

2025

AN 25 - 07 RPM S2 495.0 pending pending Awaruite - Visibly

Disseminated

AN 25 - 08 RPM S3 491.0 pending pending Awaruite - Visibly

Disseminated

AN 25 - 09 RPM S3 480.0 pending pending pending

AN 25 - 10 RPM S1 233.0 pending pending pending

AWARUITE - RARE & PURE NATURAL NICKEL-IRON-COBALT ALLOY MINERAL

The sulfur-free nature of awaruite (Ni3Fe), a naturally occurring nickel-iron-cobalt alloy already in metallic

form, eliminates the need for secondary processes such as smelting, roasting or acid leaching that are

typical of sulfide or laterite nickel ores. Unlike sulfides, which are not natural alloys, awaruite avoids the

challenge of sourcing smelter capacity - a bottleneck in North America's nickel supply chain. With an

average nickel grade of approximately 76%, awaruite significantly exceeds the ~25% 1 nickel grade

characteristic of pentlandite. Awaruite's strong magnetic properties enable concentration through

magnetic separation, as demonstrated by Davis Tube Recovery (DTR) testing at First Atlantic's RPM

Zone drill core.

Awaruite eliminates the electricity requirements, emissions, and environmental impacts associated with

conventional smelting, roasting or acid leaching processes of common nickel minerals. Moreover,

awaruite's sulfur-free composition removes the risks of acid mine drainage (AMD) and related permitting

challenges commonly posed by sulfide minerals 2. As noted by the United States Geological Survey

(USGS) in 2012: "The development of awaruite deposits in other parts of Canada may help alleviate

any prolonged shortage of nickel concentrate. Awaruite, a natural iron-nickel alloy, is much easier to

concentrate than pentlandite, the principal sulfide of nickel."

Figure 5: Quote from USGS on Awaruite Deposits in Canada

1 https://fpxnickel.com/projects-overview/what-is-awaruite/

2 https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/mineral-pubs/nickel/mcs-2012-nicke.pdf