DST Provides Update on Debt Status and Ongoing Negotiations

(TheNewswire)

THETFORD MINES, QUEBEC – TheNewswire - May 23,2025 – Dundee Sustainable Technologies Inc. (“ DST ” or the “ Corporation ”) (CSE: DST) isproviding a status update regarding its outstanding financialobligations and ongoing efforts to restructure its balance sheet.

As of May 15, 2025, certain loans and convertible debentures held bythe Corporation reached their maturity date without repayment. Theseinclude $20 million in loans held by Dundee Resources Limited(“DRL”) and a $5.7 million convertible debenture held byInvestissement Quebec (“IQ” and collectively with DRL the“Creditors”). The Corporation acknowledges that these financialobligations have come due and remain unpaid at this time.

DST is actively engaged in constructive discussions with both DRL andIQ to explore solutions that would restructure the Corporation’sbalance sheet and address its current financial position. While nodefinitive agreement has been reached as of today, the Corporation isworking diligently with its Creditors to reach a mutually beneficialresolution that avoids a formal default and supports long-termbusiness stability.

"We understand the importance of resolving these matters in atimely and transparent manner,” said Jean-Philippe Mai, CEO of DST“We are confident that an agreement can be reached soon that servesthe best interests of all parties involved, including our stakeholdersand shareholders.”

DST will provide an additional update and issue a new press release assoon as an agreement has been finalized.

About Dundee SustainableTechnologies, a corporation controlled by Dundee Corporation

The Corporation is engaged in the development and commercialisation ofenvironment-friendly technologies for the treatment of materials inthe mining industry. Through the development of patented, proprietaryprocesses, DST extracts precious and base metals from mineralisedmaterial, concentrates and tailings, while stabilising contaminantssuch as arsenic, which could not otherwise be extracted or stabilisedwith conventional processes because of metallurgical issues orenvironmental considerations.

DST has filed, published and was granted patents for the GlassLockProcess™ and CLEVR Process™ in numerous countries.

FOR FURTHER INFORMATION PLEASECONTACT:

Mr. Jean-Philippe Mai

President and CEO

Dundee Sustainable Technologies Inc.

Tel: (514) 866-6001 # 228

[email protected]

FORWARD LOOKING STATEMENTS: This press release containsforward-looking statements that address future events and conditions,which are subject to various risks and uncertainties. Actual resultscould differ materially from those anticipated in such forward-lookingstatements as a result of numerous factors, some of which may bebeyond the Corporation’s control. These factors include generalmarket and industry conditions, risks related to continuous operationsand to commercialization of new technologies and other risks disclosedin the Corporation's filings with Canadian SecuritiesRegulators.

Forward-looking statements are based on theexpectations and opinions of the Corporation's management on the datethe statements are made. The assumptions used in the preparation ofsuch statements, although considered reasonable at the time ofpreparation, may prove to be imprecise and, as such, undue relianceshould not be placed on forward-looking statements. The Corporationexpressly disclaims any intention or obligation to update or reviseany forward-looking statements whether as a result of new information,future events or otherwise, except as required by applicable law.

Neither the CSE nor its RegulationServices Provider (as that term is defined in the policies of the CSE)accepts responsibility for the adequacy or accuracy of thisrelease.

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