Mr. Jean-Philippe Mai reports

DST COMPLETES GLASSLOCK DETAILED ENGINEERING MANDATE

Dundee Sustainable Technologies Inc. has completed its detailed engineering mandate previously announced on July 13, 2023 (see press release July 13, 2023). The corporation's proprietary GlassLock Process, designed for the stabilization of legacy arsenic-bearing material, has made significant headway, and the company is now awaiting guidance from the client's investment committee.

The corporation embarked on an important engineering mandate with a gold mining company (the client) operating in West Africa. This mandate focuses on delivering detailed engineering solutions that leverage the company's proprietary Glasslock Process, which has been proven to be highly effective in addressing arsenic-related challenges in the mining industry.

"We are excited to report that the engineering work under the mandate has progressed according to schedule, and we remain committed to delivering a tailored solution that aligns with the client's operational requirements," stated Jean-Philippe Mai, president and chief executive officer. "Our collaboration with the client is a testament to the trust they have in our expertise and the technology. We are convinced about the potential positive impact our Glasslock Process will have on their operations."

The detailed engineering deliverables within the mandate are a crucial step toward the successful commercial implementation of the company's Glasslock Process. The company is confident that the forthcoming developments with the client will pave the way for the successful implementation of the technology at the client's site.

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, DST 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.