DST Announces Mandate with Global Gold Producer

MONTREAL, QUEBEC – TheNewswire – November 11, 2020 – Dundee Sustainable Technologies Inc. ("DST" or the "Corporation") (CSE:DST) (CNSX:DST.CN) (OTC:DNDDF) is pleased to announce that it has obtained a technical mandate from a Global Gold Producer (the "Gold Producer"). The mandate consists in metallurgical test work on material from the Gold Producer’s developing operation located in South America (the "Project"). This test work is intended to develop an optimal process flowsheet for the recovery of gold using DST’s CLEVR Process(TM) (the "DST Process" or "CLEVR"). An economic assessment to evaluate the operational conditions, benefits and costs of CLEVR at the industrial scale will be carried out as part of the current mandate.

The objective of the metallurgical test work will be to define and confirm, at the laboratory scale, the achievable gold extraction yields using CLEVR on the Project’s mineralised material and to develop and optimised the process conditions for the Project.

Following the laboratory campaign, DST will undertake the development of a numeric process model using METSIM(R) software to simulate the industrial CLEVR conditions for the Project. Using the numeric process model and the test work data, an economic assessment, at the scoping level, will be generated to provide economic references for a full-scale implementation processing plant using DST’s Process.

To perform this mandate, DST will utilise the services of its in-house engineers and intends to work in close collaboration with the Gold Producer’s technical group to benefit from both parties’ experience in metallurgical projects.

The present mandate is the second mandate being performed by DST with the Gold Producer. Earlier this year, DST completed a metallurgical test program on the application of CLEVR on a different gold project controlled by the Gold Producer, using CLEVR gold extraction yields achieved of up to 95.6% (http://dundeetechnologies.com/dsts-clevr-process-achieves-95-gold-extraction).

Mr. David Lemieux, the President and CEO of the Corporation stated, "DST is very pleased with the development of this collaboration with the Gold Producer. This project is another good opportunity for DST to demonstrate the efficiency and viability of the CLEVR and to position DST has a key metallurgical technology provider within the industry."

Work on the Project will be initiated in Q4-2020 and is expected to be completed by the end of Q1-2021.

About Dundee Sustainable Technologies, a corporation controlled by Dundee Corporation

The Corporation is engaged in the development and commercialisation 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 mineralised material, concentrates and tailings, while stabilising contaminants such as arsenic, which could not otherwise be extracted or stabilised with conventional processes because of metallurgical issues or environmental considerations.

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

FOR FURTHER INFORMATION PLEASE CONTACT:

Mr. David Lemieux

President and CEO

Dundee Sustainable Technologies Inc.

Tel: (418) 423-7247 # 227

Cell: (418) 331-0486

info@dundeetechnologies.com

FORWARD LOOKING STATEMENTS: This press release contains forward-looking statements that address future events and conditions, which are subject to various risks and uncertainties. Actual results could differ materially from those anticipated in such forward-looking statements as a result of numerous factors, some of which may be beyond the Corporation’s control. These factors include general market and industry conditions, risks related to continuous operations and to commercialization of new technologies and other risks disclosed in the Corporation’s filings with Canadian Securities Regulators.

Forward-looking statements are based on the expectations and opinions of the Corporation’s management on the date the statements are made. The assumptions used in the preparation of such statements, although considered reasonable at the time of preparation, may prove to be imprecise and, as such, undue reliance should not be placed on forward-looking statements. The Corporation expressly disclaims any intention or obligation to update or revise any 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 Regulation Services Provider (as that term is defined in the policies of the CSE) accepts responsibility for the adequacy or accuracy of this release.

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