Mr. Jean-Philippe Mai reports

DST PROVIDES UPDATE ON DEBT STATUS AND ONGOING NEGOTIATIONS

Dundee Sustainable Technologies Inc. is providing a status update regarding its outstanding financial obligations and continuing efforts to restructure its balance sheet.

As of May 15, 2025, certain loans and convertible debentures held by the corporation reached their maturity date without repayment. These include $20-million in loans held by Dundee Resources Ltd. (DRL) and a $5.7-million convertible debenture held by Investissement Quebec (IQ and collectively with DRL, the creditors). The corporation acknowledges that these financial obligations have come due and remain unpaid at this time.

Dundee Sustainable is actively engaged in constructive discussions with both DRL and IQ to explore solutions that would restructure the corporation's balance sheet and address its current financial position. While no definitive agreement has been reached as of today, the corporation is working diligently with its creditors to reach a mutually beneficial resolution that avoids a formal default and supports long-term business stability.

"We understand the importance of resolving these matters in a timely and transparent manner," said Jean-Philippe Mai, chief executive officer of Dundee Sustainable. "We are confident that an agreement can be reached soon that serves the best interests of all parties involved, including our stakeholders and shareholders."

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

About Dundee Sustainable Technologies Inc.

The corporation is engaged in the development and commercialization of environment-friendly technologies for the treatment of materials in the mining industry. Through the development of patented, proprietary processes, Dundee Sustainable extracts precious and base metals from mineralized material, concentrates and tailings, while stabilizing contaminants such as arsenic, which could not otherwise be extracted or stabilized with conventional processes because of metallurgical issues or environmental considerations.

We seek Safe Harbor.