What Dundee Sustainable Technologies does

Dundee Sustainable Technologies Inc. is a Canadian cleantech firm that develops and licenses proprietary metallurgical processes for the mining and smelting industries. Its commercial offering centers on two patented technologies: the CLEVR Process™, a cyanide-free gold extraction route using sodium hypochlorite with catalytic sodium hypobromite in acidic conditions, achieving reported gold recoveries above 95% in a 2-hour contact time within a closed-loop, zero-liquid-effluent system; and the GlassLock Process™, which vitrifies arsenic into a stable, insoluble glass matrix containing up to 20% arsenic at a documented cost under $1,000 per tonne of arsenic stabilized and compliant with US EPA methods 1311 and 1315. The technologies are protected by more than 40 granted patents across 15+ countries and are supported by a metallurgical services platform spanning ore characterization, METSIM-based process simulation, 25-tonne-per-day crushing and grinding, 1-tonne-per-day piloting, and a 15-tonne-per-day industrial demonstration plant at the company's Thetford Mines, Quebec technical center.

The company monetizes through a hybrid of technology licensing (upfront fees plus royalties tied to deployment) and fee-for-service technical engagements (test work, pilot programs, demonstration campaigns), with project-based, custom-quoted pricing rather than disclosed tiers. Target customers are mid-to-large mining and smelting operators dealing with refractory gold ores, cyanide restrictions, or arsenic-bearing concentrates, tailings, flue dusts, and pregnant leach solutions; commercial engagement typically proceeds through ore characterization, pilot testing on client materials, and ultimately licensing for full-scale deployment. The company lists internationally via global mining conferences (PDAC, MINExpo, Expomin, WAMPEX, Indonesia Miner, Mining Indaba) and maintains ISO 14034:2016 environmental technology verification for CLEVR.

Dundee Sustainable Technologies has been listed on the Canadian Securities Exchange (DST.CSE) since 2014, with Dundee Corporation holding a 78% controlling stake. In Q1 2026 Dundee Corporation announced an agreement to privatize DST. The company is led by President & CEO Jean-Philippe Mai, CFO Arved Marin, COO Jean Tardif, and VP of Environmental Performance & Sustainability Brent Johnson, with Chairman Emeritus and co-founder Dr. Jean-Marc Lalancette as the principal patent author. Reported operational geographies include Canada, Chile, Ghana, Indonesia, Australia, and France.

Name

Dundee Sustainable Technologies

Legal name

Dundee Sustainable Technologies Inc.

Website

https://dundeetechnologies.com

Company type

Public

Founded year

2014

Operating status

Operating

Headcount range

11–50 employees

Short description

Dundee Sustainable Technologies licenses patented, cyanide-free gold extraction (CLEVR Process) and arsenic vitrification (GlassLock Process) technologies to mining and smelting operators, supported by metallurgical testing and demonstration services from its Thetford Mines, Quebec technical center.

Ownership category

akta.pro rank

Product category

Mining Metallurgy & Sustainable Mineral Processing

NAICS

Gold Ore and Silver Ore Mining (21222), Support Activities for Metal Mining (213114)

SIC

Gold And Silver Ores (1040), Services-Testing Laboratories (8734)

akta.pro primary industry

Precious Metals Ore Processing & Beneficiation (IMAKAEAD)

akta.pro secondary industries

Leaching & Hydrometallurgical Beneficiation (Heap/Dump/Vat; Bioleaching) (IMAKALAE), Mining & Heavy Metals Remediation (Acid Mine Drainage, tailings-impacted sites) (BPALAKAK), Precious Metals Assaying, Metallurgical Testing & Certification (IMAKAEAK), Process Water & Effluent Treatment (Water Recycle, AMD Treatment, Neutralization) (IMAKALAI)

Keywords

• Cyanide-free gold extraction
• Arsenic stabilization vitrification
• Refractory ore processing
• Metallurgical process licensing
• Mining cleantech services

Headquarters

HQ city

Montréal

HQ country

Canada

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Supply Chain

Revenue model

1. Technology Licensing: Licensing of proprietary metallurgical processes (CLEVR Process and GlassLock Process) to mining companies for commercial deployment. Revenue generated through upfront licensing fees and ongoing royalties based on usage or production metrics.
2. Technical Services: Fee-for-service metallurgical testing, process development, piloting, and demonstration campaigns. Services include laboratory analysis, process simulation, pilot testing, and technical consulting for mining and smelting operations.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Dundee Sustainable Technologies licenses proprietary metallurgical processes and provides technical services to mining companies. Its CLEVR Process™ is a patented cyanide-free gold extraction method using sodium hypochlorite with catalytic sodium hypobromite in acidic conditions, achieving >95% gold recovery in 2 hours versus 36+ hours conventionally. Its GlassLock Process™ vitrifies arsenic into a stable, insoluble glass matrix, permanently stabilizing up to 20% arsenic for mining and smelting waste streams. These technologies are delivered via licensing, pilot and demonstration campaigns, and fee-for-service metallurgical testing from the company's Thetford Mines, Quebec facility.

Product overview

Dundee Sustainable Technologies operates as a platform of proprietary metallurgical processes centered on two core patented technologies — the CLEVR Process™ for cyanide-free gold extraction and the GlassLock Process™ for arsenic stabilization — supported by a comprehensive suite of Technical Services encompassing process development, piloting, and metallurgical testing and demonstration. Together, these offerings enable the mining industry to handle complex and refractory ores while meeting environmental compliance requirements.

Differentiator

Problem solved

Functional benefit

Brands

• CLEVR Process™: Proprietary cyanide-free gold extraction process using sodium hypochlorite with catalytic sodium hypobromite in acidic conditions, achieving >95% gold extraction yields in 2 hours contact time.
• GlassLock Process™

Products and services

• CLEVR Process™ Patented cyanide-free gold extraction process that uses sodium hypochlorite (not chlorine gas) with catalytic sodium hypobromite in acidic conditions, reducing gold extraction contact time from 36+ hours to 2 hours in a closed-loop, zero-liquid-effluent system with all reagents recycled and achieving >95% gold extraction yields on refractory ores (pyrite, arsenopyrite, tellurides, carbonaceous) as well as Cu/Zn base materials. Licensed to mining companies and operators seeking cyanide-free gold recovery.
• GlassLock Process™ Patented arsenic stabilization and vitrification process that integrates arsenic into a stable, insoluble amorphous glass matrix capable of incorporating up to 20% arsenic, compliant with US EPA methods 1311 and 1315, at a cost under $1,000 per tonne of arsenic stabilized. Applied to metallurgical flue dusts, mineral concentrates, pregnant leach solutions, and tailings from mining and smelting operations.
• Technical Services End-to-end metallurgical services including laboratory analysis (ICP Plasma, atomic absorption, LECO for sulfur, ion chromatography, XRF, fire assay), process development and METSIM® simulation, mineral processing (25-tonne/day crushing/grinding, gravimetric and flotation concentration), piloting (1 TPD hydrometallurgical and vitrification facilities), and industrial-scale demonstration (15 TPD plant). Sold on a fee-for-service basis to mining and base-metals customers.

Quantifiable outcome

• >95% gold extraction yields
• +5 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Two partnerships are on record, tiered minor.

• Écotech QuébecminorOthersÉcotech Québec is a Quebec-based cleantech cluster organization. Dundee Sustainable Technologies is a member, indicating participation in Quebec's cleantech ecosystem and access to networking and support resources.
• Export Development Canada (EDC)minorOthersEDC is Canada's export credit agency. Dundee Technologies mentions EDC as a partner organization, suggesting potential support for international business development and export activities.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• FLSmidth: FLSmidth supplies mineral processing and hydrometallurgical plant equipment (including refractory gold circuits) to mining operators globally, making it a comparable integrated process-technology and equipment provider for the same customer base.
• Metso: Metso (formerly Metso Outotec) provides hydrometallurgical processing equipment, plant packages, and licensed processes to base and precious metal miners, overlapping with DST's hydrometallurgical licensing and process-engineering offering.
• BASF Mining Solutions: BASF Mining Solutions is one of the largest suppliers of chemical reagents and process technologies (including cyanide management and hydrometallurgical aids) to mining operators, addressing the same extraction-chemistry use cases as CLEVR.
• Cyanco: Cyanco is the dominant global supplier of sodium cyanide to gold mining — the incumbent process Dundee's CLEVR aims to displace — and is comparable because it monetizes the same gold-extraction chemistry, only via a different reagent.
• Solvay Mining: Solvay provides specialty reagents and process chemistries (e.g., AERO collectors, hydrometallurgical reagents) used in mineral processing and metal recovery, making it a comparable mining-chemistry supplier to DST's customer base.
• SGS Natural Resources: SGS operates a global network of mineral processing and metallurgical testing laboratories offering test work, piloting, and flowsheet development services that directly overlap with DST's Technical Services offering.

Emerging players

• Jetti Resources: Jetti Resources has commercialized a catalytic leaching technology for copper ores (and is exploring other metals) — a comparable emerging hydrometallurgical process-platform company targeting metal-extraction efficiency in mining.
• Clean TeQ Water (now Sunrise Energy Metals) / Clean TeQ Holdings: Clean TeQ developed hydrometallurgical and water-treatment technologies, including resource-recovery and contaminant-removal processes for mining applications, overlapping with DST's mineral-recovery and arsenic/waste management capabilities.
• Clean Mining (a subsidiary of Eco-Metals): Clean Mining promotes a cyanide-free gold recovery process (based on CSIRO glycine/leach technology), directly competing with Dundee's CLEVR Process for the same cyanide-replacement use case across refractory gold operations.

Others

• Barrick Gold: As one of the world's largest gold miners with refractory assets and known arsenic-handling challenges, Barrick is a representative enterprise customer/partner for DST's CLEVR and GlassLock technologies rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@dundeesustainabletechnologies
• LinkedInlinkedin.com/company/nichromet-extraction-inc.

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dundee Sustainable Technologies