Press Releases

DST Announces The Successful Start of Operation of Tolling Contract for 230 Tonnes of Material Containing 270 g/t Gold and Other

October 29, 2021

MONTREAL, QUEBEC, October 29, 2021 – Dundee Sustainable Technologies Inc. (“DST” or the “Corporation”) (CSE: DST) is pleased to announce that it has successfully commenced the operation phase of a tolling contract agreement (the “Contract”) for the processing of 230 tonnes of high-grade gold bearing material at its facilities in Thetford Mines, Canada.

The contract consisted in the design, construction, and operation of a new rotary kiln furnace to process the material. The construction phase spanned over a 4-month period and allowed for a fully operational 2 feet (60 cm) internal diameter by 25 feet (7.60 m) long rotary kiln furnace to be constructed and fully commissioned by DST.  The circuit includes a feeding system and a cooling screw and is designed to operate at a temperature of up to 900°C and a feed rate of up to 150 kg/hr of material.

The tolling program (the “Program”), as previously mentioned in DST May 12th Press release ( will be conducted on material from a Senior Canadian Gold Mining Company (the “Gold Company”) and administrated by an International Metal Trading Company (the “Metal Trader”) with whom DST executed the Contract.

Between May and June 2021, a total of 230 tonnes of high-grade gold material (the “Material”) produced by the Gold Company was received at DST facilities. The Material is known to contain 270 g/t of gold, on average, with a minimum of 25 g/t and a maximum of 1,900 g/t of gold, along with silver content of greater than 500 g/t. The current operation phase is expected to continue over a period of 6 months and will produce a clean gold product.

This Contract is part of DST’s strategy to leverage its key asset located in Thetford Mines, Quebec, in order to generate revenues while the Corporation continues along the path to commercializing its GlassLock Process™ and CLEVR Process™.

DST is also announcing, with effect on October 31, 2021, the resignation of Mrs. Patricia Osorio as Corporate Secretary of the Corporation to pursue other opportunities. David Lemieux, President and CEO stated “On behalf of the DST’s team and the Board of Directors we wish to thank Patricia for her dedicated work and we wish her the best in her future endeavours”. Mr. Arved Marin, Chief Financial Officer has been appointed as Interim Corporate Secretary, effective November 1, 2021.

Back to Press Releases