Arbor Metals Announces Closing of Private Placement

NEWS RELEASE

ARBOR METALS ANNOUNCES CLOSING OF PRIVATE PLACEMENT

NOT FOR DISTRIBUTION TO U.S. NEWSWIRE SERVICES OR DISSEMINATION IN THE UNITED STATES

Vancouver, Canada – May 21, 2026 – Arbor Metals Corp. (“Arbor” or the “Company”) (TSXV: ABR, FWB: 432) is pleased to announce that it has closed its non-brokered private placement of 3,000,000 units (each, a “Unit”) at a price of $0.14 per Unit for gross proceeds of $420,000 (the “Offering”). Each Unit consists of one common share of the Company (each, a “Share”) and one common share purchase warrant (each, a “Warrant”). Each Warrant en�tles the holder to acquire one Share of the Company at a price of $0.22 un�l May 21, 2029, provided that holders will not be permi�ed to exercise Warrants un�l 60 days following closing of the Offering.

The Company expects to u�lize proceeds of the Offering for explora�on work at the Company’s Jarnet lithium project and for general working capital purposes.

The Units issued under the Offering were offered for sale pursuant to the listed issuer financing exemp�on under Part 5A of Na�onal Instrument 45-106 – Prospectus Exemp�ons, as amended by CSA Coordinated Blanket Order 45-935 – Exemp�ons from Certain Condi�ons of the Listed Issuer Financing Exemp�on (collec�vely, the “Listed Issuer Financing Exemp�on”), in all provinces of Canada, except Quebec, and other qualifying jurisdic�ons, including the United States. The Units issued under the Listed Issuer Financing Exemp�on are immediately “free-trading” under applicable Canadian securi�es laws.

In connection with closing of the Offering, the Company paid finder’s fees of $17,640 and issued 126,000 non-transferable common share purchase warrants (each, a “Finders’ Warrant”) to certain arms-length parties (each, a “Finder”) who assisted in introducing subscribers to the Offering. Each Finders’ Warrant entitles the holder to acquire one Share of the Company at a price of $0.22 until May 21, 2029. All securities issued to Finders are subject to restrictions on resale until September 22, 2026, in accordance with applicable securities laws.

This press release is not an offer to sell or the solicitation of an offer to buy the securities in the United States or in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to qualification or registration under the securities laws of such jurisdiction. The securities being offered have not been, nor will they be, registered under the United States Securities Act of 1933, as amended, and such securities may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons absent registration or an applicable exemption from U.S. registration requirements and applicable U.S. state securities laws.

About Arbor Metals Corp.

Arbor Metals Corp. is a mining explora�on company focused on developing high-value, geographically significant mineral projects worldwide. Arbor is paving the way for advanced mineral explora�on as it oversees world-class mining projects. The Company is confident that combining quality projects with proven strategies and a dedicated team will yield excep�onal outcomes.

The Jarnet, Corve�e 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 con�guous to the Corve�e-FCI property, where diamond drilling has confirmed significant lithium mineraliza�on represen�ng one of the highest-profile lithium explora�on 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 similari�es 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 pegma�tes hosted in metasediments.

For further informa�on, contact Mark Ferguson, Chief Execu�ve Officer, at [email protected], 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 Execu�ve Officer

Neither the TSX Venture Exchange nor its Regula�on 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 Securi�es Li�ga�on Reform Act of 1995 and “forward-looking informa�on” within applicable Canadian securi�es laws. When or if used in this news release, the words “an�cipate”, “believe”, “es�mate”, “expect”, “target”, “plan”, “forecast”, “may”, “schedule” and similar words or expressions iden�fy forward- looking statements or informa�on. These forward-looking statements or informa�on may relate to statements with respect to the intended use of proceeds from the Offering; the an�cipated benefits and impacts of the Offering and the Company’s future opera�ons and business prospects. Such statements represent the Company’s current views with respect to future events and are necessarily based upon a number of assump�ons and es�mates that, while considered reasonable by the Company, are inherently subject to significant business, economic, compe��ve, poli�cal and social risks, con�ngencies and uncertain�es. 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. Such factors include, but are not limited to, risks related to the an�cipated use of proceeds from the Offering not being used as an�cipated; general business, economic, compe��ve, poli�cal and social uncertain�es; uncertain capital markets; and delay or failure to receive board or regulatory approvals. The Company does not intend, and does not assume any obliga�on, to update these forward-looking statements or informa�on to reflect changes in assump�ons or changes in circumstances or any other events affec�ng such statements and informa�on other than as required by applicable laws, rules and regula�ons.