MONTREAL, QUEBEC--(Marketwired - June 13, 2017) - Dundee Sustainable Technologies Inc. ("DST" or the "Corporation") (CSE:DST)(CSE:DST.CN)(CNSX:DST) is pleased to announce that it has entered into a contract with RNC Minerals ("RNC") for the treatment of nickel sulphide concentrate from a non-related third party (the "Concentrate"). This third party has provided up to $1.5 million services contract, based on pre-determined milestones, to complete the tests and contracted RNC to pilot nickel roasting technology for downstream use in the stainless-steel industry.

DST will perform, at its industrial scale demonstration facilities located in Thetford Mines, Quebec (the "Plant"), dead roasting of 400 wet metric tonnes of the Concentrate to produce a nickel calcine that will be returned to the third party after the completion of the roasting campaign for customer testing. From the reception of the Concentrate, the campaign is expected to occur over a four (4) month period.

"With the completion of our recent demonstration program on a complex gold concentrate from Chile (refer to December 13, 2016 press release), this transaction allows to optimize the use of our state of the art facilities and talented team of engineers and scientists. Our priority remains the commercialization of our cyanide-free gold extraction and arsenic stabilization technologies, but opportunities like this allow us to leverage our assets and to generate revenue", says Brian Howlett, DST's President & CEO.

DST provides its technical expertise and facilities to companies wishing to further evaluate the development of their projects using the Corporation laboratory, piloting and/or industrial demonstration facilities on specific projects in need of viable processing capacities, and to initiate engineering studies required for an industrial implementation.

About Dundee Sustainable Technologies, a company controlled by Dundee Corporation

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.

DST has filed, published and was granted patents for these processes in several countries.

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.

Contact Information:

Mr. Brian Howlett
President and CEO
Dundee Sustainable Technologies
(514) 866-6001 # 239
Cell: (647) 227-3035