Cullinan Files NI 43-101 Technical Report on Burnt Pond NL VMS Project

Cullinan Metals Corp.

Vancouver, B.C. – TheNewswire – June 2, 2026 Cullinan Metals Corp. (CSE: CMT) (OTCQB: CMTNF) (FSE: 7KO) (the Company” or “Cullinan”) has filed an independent National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”) technical report on the Burnt Pond volcanic massive sulphide (VMS) project (the “Burnt Pond VMS Project”), entitled “NI 43-101 Technical Report on the Burnt Pond Volcanic Massive Sulphide (VMS) Project in Newfoundland and Labrador” with an effective date of May 29, 2026, on SEDAR+ (the “Technical Report”).

The Burnt Pond VMS Project is situated within the Tally Pond volcanic belt of central Newfoundland and Labrador, a wellestablished metallogenic district that hosts multiple VMS deposits, including the Duck Pond and Boundary deposits located along the same regional trend1. The Burnt Pond VMS Project encompasses favourable felsic volcanic stratigraphy, pervasive hydrothermal alteration, and several sulphidebearing horizons, all of which are indicative of a VMS mineralizing system.

The Burnt Pond VMS Project hosts an approximately 500-meter-long by 150-meter-deep VMS style base-metal-rich stringer zone with local narrow massive sulphides. Historical drilling intersected a tectonized massive sulphide zone approximately 400 meters along strike to the southwest of the original prospect. This intersection is at the same stratigraphic level as the original prospect, but represents a separate lens of high-grade massive sulphides, richer in grade than the original showing, which is open along strike and down dip.

Mineralization at the Burnt Pond VMS Project is characteristic of a classic arcrelated VMS system: syngenetic, stratabound, and closely associated with intensely altered felsic volcanic rocks, graphitic sediments, and cherty tuff horizons. Two stacked mineralized horizonsthe lower rhyolitic stringer zone and the upper graphite massive sulphide horizonmirror the architecture of productive VMS camps worldwide1. Historical drill intersections include 54.9 meters of sulphidebearing alteration and grades such as 1.3% copper, 2.0% lead, 7.1% zinc, 22.7 g/t silver, and 0.14 g/t gold over 1.5 meters, as further delineated in the Technical Report

Derrick Strickland is an independent qualified person as defined by NI 43-101 and has reviewed, verified and approved the scientific and technical information contained in this news release. No limitations or failures to verify were identified. Mr. Stricklan is independent of the Company.

A copy of the Technical Report is available on the Company’s website and under the Company’s profile on SEDAR+.

About Cullinan Metals

Cullinan Metals Corp. is a Canadian exploration company focused on the evaluation and development of energy and critical metals opportunities. The Company holds an option to acquire a 100% interest in the Oculus Rare Earth Project in Central Labrador and the Burnt Pond VMS Project in Central Newfoundland.

 

ON BEHALF OF THE BOARD OF DIRECTORS,

CULLINAN METALS CORP.

Christopher Huggins

Chief Executive Officer
+1 (604) 968-4844

www.cullinanmetalscorp.com

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

FORWARD LOOKING STATEMENTS

Statements in this news release which are not purely historical are forward-looking statements, including any statements regarding beliefs, plans, expectations, or intentions regarding the future. Forward looking statements in this news release include, but are not limited to, general statements regarding the Company’s planned or future exploration efforts at the Burnt Pond VMS Project. It is important to note that the Company’s actual business outcomes and exploration results could differ materially from those in such forward-looking statements. Risks and uncertainties include that economic, competitive, governmental, geopolitical, environmental and technological factors may affect the Company’s operations, markets, products and prices; our specific plans and timing drilling, field work and other plans may change; that the Company may not have access to or be able to develop any minerals because of cost factors, type of terrain, or availability of equipment and technology; and we may also not raise sufficient funds to carry out or complete our plans. Labor shortages, inflationary pressures, rising interest rates, the global financial climate and international conflicts are some additional factors that are affecting current economic conditions and increasing economic uncertainty, which may impact the Company’s operating performance, financial position, and prospects. Collectively, the potential impacts of this economic environment pose risks that are currently indescribable and immeasurable. No assurance can be given that any of the events anticipated by the forward-looking statements will occur or, if they do occur, what benefits the Company will obtain from them. Readers are cautioned that forward-looking statements are not guarantees of future performance or events and, accordingly, are cautioned not to put undue reliance on forward-looking statements due to the inherent uncertainty of such statements. Additional risk factors are discussed in the section entitled “Risk Factors” in the Company’s Management Discussion and Analysis for its recently completed fiscal period, which is available under the Company’s SEDAR+ profile at www.sedarplus.ca. Except as required by law, the Company will not update or revise these forward-looking statements after the date of this document or to revise them to reflect the occurrence of future unanticipated events.

1 Mineralization on adjacent projects may not be indicative of mineralization on the Burnt Pond VMS Project.

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