File: '\\swfile\EmailIn\20250601 221208 Attachment Arbor Metals Corp - News Release.docx'

NEWS RELEASE

ARBOR METALS IDENTIFIES LITHIUM ANOMALIES FROM PHASE 1 DRILLING AT JARNET LITHIUM PROJECT

Vancouver, Canada - June 2, 2025 - Arbor Metals Corp. ("Arbor" or the "Company") (TSXV: ABR, FWB: 432) is pleased to announce inaugural assay results on its wholly owned Jarnet Lithium Project located adjacent to Patriot Battery Metals' Shaakichiuwaanaan Property(formerly known as the Corvette Project), located in the Eeyou Istchee James Bay region of Quebec.

The Phase 1 program, which consisted of 10 holes (1,913 metres), was designed to test large-scale pegmatite dykes swarms identified in the 2023 and 2024 field programs, which included ground geophysics, surface sampling and systematic soil sampling. Lithium anomalies in the range of 100 to 310 ppm were observed in 179 core samples and over 657ppm in 27% of the samples. Pegmatite dykes were mapped over widths ranging from 1m to 15m and were of varied and distinct compositions, which is suggestive of multiple phase events. Furthermore, the wide and consistent dissemination of the lithium values, which consistently increased at depth, may be indicative of an enrichment envelope.

Drilling focused on swarms of granitic pegmatite dykes hosted in varied lithologies: amphibolite, monzonite, granodiorite and sediments. Hole JAR-24-001 was drilled following an east-west direction to crosscut at right angle a quartz vein system hosting molybdenite. Holes JAR-24-006 and JAR-24-007 were drilled following a north-south direction, ~ 1km east of JAR-24-001 and 300m to 500 metres south from surface sampling. JAR-24-005 was drilled close to eastern the end of an outcrop following a north-west direction about 500 metres from holes JAR-24-006 and 007. Overall, the different targets covered an area of about 1.5km of strike length.

Results of the inaugural drill program support the Company's hypothesis that the Jarnet 2 claims block hosts a kilometric wide corridor of pegmatite dyke swarms. While lithium values and observations have not as yet proven the presence of high-grade spodumene bearing pegmatites, the broadly distributed lithium anomalies may indicate the presence of a fertile local environment for hosting a spodumene bearing dyke swarm.

Drilling Phase 2 Description of Anomalous Lithium Drill Holes

DDH No

Interval

Target Description

Results

JAR-24-001

2m - 268m

1 to 10 meters pegmatites dykes Sediments hosted

Tourmaline bearing

Li anomalies 100 to 200ppm

From 28 to 41 metres, 109 to 140 metres

JAR-24-005

12.5 - 182m

0.5 to 5.0 metres pegmatites dykes.

Tourmaline bearing

Li anomalies 100 to 200ppm

From 19 to 27 metres, 31 to 39 metres, 43 to 116 metres, 147 to 171,5m.

JAR-24-006

18 - 170m

0.6 to 16 metres pegmatite dykes.

Granite hosted

Tourmaline bearing

Li anomalies 100 to 200ppm

From 27 to 40 metres

JAR-24-007

7 - 198m

0.5 to 6.0m pegmatite dykes.

Granite hosted.

Tourmaline bearing

Li anomalies 100 to 200ppm

From 15 to 38 metres

Phase 1 drilling was performed by Forage et Construction Muskw, a joint venture between Forage Fusion Drilling and the Cree community, represented by Saskounan. Muskw, based in Chisasibi, Quebec, is co-owned and predominantly operated by local and Indigenous stakeholders. Muskw's involvement exemplifies the success of local and Indigenous ownership and reinforces Arbor's commitment to community engagement and economic development in the regions where it operates. Arbor Metals extends its sincere gratitude to Muskw for their expertise, professionalism, and dedication to the project.

Mark Ferguson, President and CEO of Arbor commenting "The positive markers from our Phase 1 drilling program have given us a solid foundation to build upon as we continue to explore the lithium potential at Jarnet. We are confident our upcoming program will provide additional critical information to help define the next steps for the project. We are eager to expand our efforts to include the high-priority target areas on the Firebird, Corvette, and St. Pierre claims."

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 communities and other stakeholders to ensure its activities are aligned with the needs and concerns of the communities in which it operates.

Qualified Person

Martin Demers, PGeo, registered in the Province of Quebec (OGQ No. 770), 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.

Incentive Grant

The Company also announces that it has granted an aggregate of 1,100,000 restricted share units ("RSUs") to certain directors and officers of the Company. The RSUs were granted in accordance with the omnibus incentive plan adopted by the Company, and vest and convert into common shares of the Company on June 2, 2026.

About Arbor Metals Corp.

Arbor Metals Corp. 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, comprises 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 kilometers east of Rock Tech Lithium Inc.'s Aumacho claim blocks and twelve 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 dykes. The primary target at the Project will be spodumene-bearing pegmatites hosted in metasediments.

For further information, contact Mark Ferguson, Chief Executive Officer, at info@arbormetalscorp.com, or 403.852.4869, or visit the Company's website at www.arbormetalscorp.com.

On behalf of the Board,

Arbor Metals Corp.

Mark Ferguson, Chief Executive Officer

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

This news release may contain certain "Forward-Looking Statements" within the meaning of the United States Private Securities Litigation Reform Act of 1995 and applicable Canadian securities laws. When or if used in this news release, the words "anticipate", "believe", "estimate", "expect", "target, "plan", "forecast", "may", "schedule" and similar words or expressions identify forward-looking statements or information. These forward-looking statements or information may relate to further exploration of the Jarnet Lithium Project and other factors or information. Such statements represent the Company's current views with respect to future events and are necessarily based upon a number of assumptions and estimates that, while considered reasonable by the Company, are inherently subject to significant business, economic, competitive, political and social risks, contingencies and uncertainties. Many factors, both known and unknown, could cause results, performance, or achievements to be materially different from the results, performance or achievements that are or may be expressed or implied by such forward-looking statements. The Company does not intend, and does not assume any obligation, to update these forward-looking statements or information to reflect changes in assumptions or changes in circumstances or any other events affecting such statements and information other than as required by applicable laws, rules and regulations.