Mr. Mark Ferguson reports

ARBOR METALS INTERSECTS ANOMALOUS LITHIUM MINERALIZATION UP TO 0.58% ACROSS 2 TARGET ZONES AT JARNET LITHIUM PROJECT

Arbor Metals Corp. has released assay results from its 2025 phase 3 diamond drilling program at its wholly owned Jarnet lithium (Li) project, located in the Corvette Lake lithium camp, Eeyou-Istchee Baie-James territory, in the Quebec North region. Anomalous lithium was encountered on the Jarnet 2 and Corvette claim blocks.

Several intervals of anomalous lithium was identified within pegmatite dikes:

• On the Jarnet 2 claim blocks, samples from JAR25-014 (at the northern extent of the Prince zone) and JAR25-015, were oriented to test an over-200-metre-wide series of pegmatites and both intersected anomalous lithium:
  • JAR25-014 intersected 1.56 metres (m) grading 5,781 parts per million (ppm) (approximately 0.57 per cent) lithium at a depth of 54.7 m.
  • JAR25-015 intersected 1.5 m grading 2,224 ppm (approximately 0.22 per cent) lithium at a depth of 212.06 m.
• On the Corvette claim blocks, samples from JAR25-029, JAR25-030 and JAR25-031 were oriented to test around the contacts between greenstone and peridotite, and also intersected anomalous lithium. The three mineralized intersections are a series of parallel dikes.
  • JAR25-031 intersected 1.14 m grading 5,861 ppm (0.58 per cent) lithium at a depth of 84.86.
  • JAR25-030 intersected:
    • 0.50 m grading 1,278 ppm (approximately 0.12 per cent) lithium at a depth of 73.5 m.
    • 0.50 m grading 5,841 ppm (approximately 0.58 per cent) lithium at a depth of 130.24 m.
    • 0.57 m grading 2,276 ppm (approximately 0.22 per cent) lithium at a depth of 203.71 m.

In addition, several intervals of anomalous REE (rare earth element) elements and base metals, such as nickel, copper and molybdenum, were identified.

"The company is pleased with these results as they continue to demonstrate that the Jarnet lithium project has the potential for high-grade lithium in two distinct areas: Jarnet 2 and Corvette," said Mark Ferguson, president and chief executive officer of Arbor. "The company is undertaking a comprehensive data study of the results to refine future diamond drilling programs."

The company expects its assay results from its fall, 2025, bark sampling program, which was conducted at the Corvette clam block around recent drilling, in Q1 of 2026.

Background

The phase 3 drilling campaign saw the completion of 10 NQ holes, with a combined drilling length of 2,451 metres. Drilling depths ranged from 137 metres to 462 metres, with approximately 572 samples collected during the program including QA/QC (quality assurance/quality control) samples. The drilling program was carried out by Muskw Drilling, a local joint venture with the Cree community.

The majority of drill holes encountered numerous pegmatite dikes hosted either by granitoids or gneissose sediments and volcanics. In general, pegmatites were 0.5 m to 2.0 m in width (to maximums of 23.56 m and 36.67 m, both in JAR25-032) and constituted about 10 per cent of each drill hole length on average. Pegmatite intervals could reach thicknesses of 10 m, up to a maximum of 46.84 m, in JAR25-019. JAR25-033 passed through a gneissose mafic unit and did not see any pegmatites.

Drill core assay results indicate the presence of localized lithium and rare earth element enrichment, however, lithium enrichment and REE enrichment are not spatially or geochemically coupled. Lithium values are highly variable, ranging from background levels (less than 50 ppm) to locally elevated values up to 5,861 ppm Li. The distribution of Li values is strongly skewed, with a small number of very high-lithium intervals that occur in individual samples, suggesting localized Li enrichment in zones of highly evolved magmatic differentiation in pegmatites or late-stage granitic phases. Additionally, there are several samples with high Li values are associated with elevated Cs (cesium), Rb (rubidium), Ta (tantalum) and Nb (niobium), consistent with LCT-type pegmatites.

REE values show a strong LREE (light rare earth element) dominance, rather than HREE (heavy rare earth element), typical of fractionated felsic systems and suggests control by accessory mineral phases, such as monazite and allanite.

There does not appear to be any meaningful correlation between elevated Li values and REE values, indicating that Li and REE mineralization is controlled by different mineral phases and/or distinct stages of magmatic evolution or fractionation.

Samples were delivered to SGS Laboratories, an arm's-length laboratory in Val d'Or, and were analyzed using GE_ICP90A50 and GE_IMS90A50 sodium peroxide fusion/combined ICP-OES (inductively coupled plasma optical emission spectroscopy) and ICP-MS (inductively coupled plasma mass spectrometry) package. Sampling was done without crossing lithological boundaries. Quality control blanks and standards were added during the core logging process, including quartz blanks and CDN-Li-1 and CDN-Li-2 standard reference materials.

Francis R. Newton, PGeo (OGQ No. 2129), a consultant to Arbor and a qualified person under National Instrument 43-101, Standards of Disclosure for Mineral Projects, has reviewed the technical contents of this news release and has approved the disclosure of the technical information contained herein.

Arbor is committed to conducting all of its exploration activities with a strong focus on environmental stewardship. The company adheres to industry-leading environmental guidelines and strives to minimize its environmental footprint. Furthermore, Arbor continues to work collaboratively with local indigenous groups and other stakeholders to ensure that its activities are aligned with the needs and concerns of the communities in which it operates. Arbor is dedicated to responsible resource development and sustainable exploration practices that foster long-term value for both the company and its stakeholders.

About Arbor Metals Corp.

Arbor Metals is a mining exploration company focused on developing high-value, geographically significant mineral projects worldwide. Arbor is paving the way for advanced mineral exploration as it oversees world-class mining projects. The company is confident that combining quality projects with proven strategies and a dedicated team will yield exceptional outcomes. The Jarnet, Corvette Lake and St. Pierre lithium projects, located in the James Bay region of Quebec, comprise 83 map-designated claims, covering an area of approximately 5,606 hectares. The projects are contiguous to the Corvette-FCI property, where diamond drilling has confirmed significant lithium mineralization representing one of the highest-profile lithium exploration projects in the sector.

The Kemlee Lake Lithium project is strategically located three kilometres east of Rock Tech Lithium Inc.'s Aumacho claim blocks and 12 kilometers south of the Georgia Lake project. The project shares many geological similarities with the prolific Georgia Lake deposit, including bedrock geology and the presence of massive intrusive dikes. The primary target at the project will be spodumene-bearing pegmatites hosted in metasediments.

We seek Safe Harbor.