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CASTLEBAR CAPITAL CORP. ANNOUNCES TERMINATION OF PROPOSED QUALIFYING TRANSACTION WITH BLOCKGRATION HOLDINGS INC.

TSX VENTURE EXCHANGE: CBAR.P

Vancouver, British Columbia, September 8, 2026 - Castlebar Capital Corp. (the "Company" or "Castlebar"), a capital pool company listed on the TSX Venture Exchange (the "TSXV") announces that the previously announced letter of intent ("LOI") dated December 18, 2025, and effective on March 16, 2026 between the Company and Blockgration Holdings Inc. ("Blockgration"), in respect of the proposed transaction that would result in a reverse take-over of Castlebar by the shareholders of Blockgration, has terminated in accordance with the terms of the LOI. The proposed transaction was expected to constitute the "Qualifying Transaction" of the Company, as such term is defined in TSXV Policy 2.4 - Capital Pool Companies ("Policy 2.4").

The Company will continue to evaluate and review alternative acquisition opportunities with a view to completing its Qualifying Transaction.

Trading in the Company's common shares ("Common Shares") was halted at the request of the Company and will resume once TSXV has completed its resumption review, if applicable

About Castlebar

Castlebar is a capital pool company in accordance with Exchange Policy 2.4 and its principal business is the identification and evaluation of assets or businesses with a view to completing a Qualifying Transaction.

For additional information, please refer to the Company's disclosure record on SEDAR+ (www.sedarplus.ca) or contact the Company as follows: Robert Meister, CEO, RMeister99@hotmail.com and 604-360-7075.

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

Caution Regarding Forward-Looking Statements

This news release includes forward-looking statements that are subject to risks and uncertainties. All statements within, other than statements of historical fact, are to be considered forward looking. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance. Castlebar cautions that all forward-looking statements are inherently uncertain and that actual performance may be affected by a number of material factors, many of which are beyond Castlebar's control. Such factors include, among other things: the ability to obtain all requisite regulatory approvals including TSXV approval, its ability to identify, evaluate and complete a Qualifying Transaction and other risks and uncertainties, including those described in the Company's public filings with the Canadian Securities Administrators and available under its profile on SEDAR+ at www.sedarplus.ca.

Accordingly, actual and future events, conditions and results may differ materially from the estimates, beliefs, intentions and expectations expressed or implied in the forward-looking information. Except as required under applicable securities legislation, the Company undertakes no obligation to publicly update or revise forward-looking information.