Our success is driven by our vision, values, and pioneering spirit


The Minto copper-gold mine is located approximately 240km from Yukon’s capital, Whitehorse. The mine ran continuously from 2007 to 2018 and recently resumed operations in October 2019 under new ownership and management after a brief maintenance closure. Since restarting, production and operational efficiencies have been progressively increasing. Minto mine operations are 100% underground and the primary product is copper concentrate, with significant amounts of gold.


To create stakeholder value through exploration, development, and mining with a focus on the Minto copper belt.


To grow sustainably and profitably to the betterment of our employees, communities, and investors.



We care for our employees, community, and environment; ensuring it is at the heart of everything we do.


We behave ethically and demonstrate transparency. We take responsibility for our actions and our results.


We seize opportunities to be better than yesterday. Together we don’t settle for the status quo.


We conduct ourselves with honesty. We stand up for what we believe in and strive to do the right thing. Building trust and fostering good relationships is part of our business.


We work together to be more effective, efficient, and fulfilled. We achieve as a team what individuals cannot.


Chris Stewart


Christopher Stewart is a Professional Engineer with over 27 years of management, operational and technical experience in the mining industry. Chris has worked for the first 14 years of his career with DMC Mining building, expanding and operating various mine operations across Canada and the USA and for the past 13 years, he has worked for several mining companies. Chris holds a Bachelor of Science in Mining Engineering from Queen’s University. Prior to joining Minto Exploration, Chris was President & COO for McEwen Mining, a precious metals producer with operations in Canada, USA, Mexico and Argentina. Prior to that he held various senior roles including President & CEO for Treasury Metals, Vice President of Operations for Kirkland Lake Gold, President & CEO of Liberty Mines, BHP Billiton, Lake Shore Gold Corporation and DMC Mining Services.

Sebastien D. Tolgyesi

General Manager

Sebastien Tolgyesi has over 25 years of experience in mine engineering, geology, construction, and operations management, with 15 of those years working North of 60. During his time in the Yukon mining industry, he has worked in senior roles with Glencore, Agnico-Eagle, Capstone, and Coeur Mining. Sebastien holds a Bachelor of Science in Geology from the University of Montreal and a Bachelor of Engineering in Mine Engineering from Laval University. He also holds accreditation as a Professional Engineer and Professional Geoscientist.

Brendan Zuidema

Mine Director

Brendan Zuidema has over 30 years of experience working in the mining industry in both Operations and Technical Services roles. He has held various senior positions over the last 10 years including Mine General Manager at Goldcorp Porcupine Gold Mines, General Manager for Dumas Contracting, and Operations Manager at Nyrstar’s Myra Falls Operations. Brendan is a graduate of the Mine Engineering Technology program from the Haileybury School of mines and received a master’s Certificate in Project Management from York University.

Katherine Penney

Mill Director

Katherine Penney has over 25 years of experience in milling and metallurgy (lead, zinc, silver, copper, nickel, gold and coal) from across North America and Guatemala including senior metallurgical and Production Manager roles for Teck Resources, Lundin Mining, Nyrstar, Tahoe Resources and Coeur Mining. Katherine holds a Bachelor of Science in Chemistry from the University of British Columbia and a Master’s of Environmental Science and Toxicology from the University of Ulster in Ireland.

Kevin LeDrew

Director, Health, Safety & Environment

Kevin LeDrew has over 25 years of experience in Health, Safety, and Environment in the mining industry, including extensive northern Canadian operational experience in both surface and underground mining operations at Nanisivik, De Beers, Snap Lake, Teck Coal, Detour Lake Gold Corporation, and Nyrstar. Kevin holds diplomas in Mineral Technology and Petroleum Resource Technology, an Executive Master of Business Administration from the University of Fredericton, and is a designated Canadian Registered Safety Professional (CRSP).

Tracy Dormer

Director, HR & Camp Operations

Tracy Dormer has over 25 years of experience in Human Resources, Information Technology, Communications, and Camp Administration. Tracy spent her early career in Information Technology before transitioning to Human Resources where she has worked for 20 years building teams and creating strong company cultures both domestically and internationally. She built her career working with large oil and gas companies in Alberta with Cenovus Energy, Nexen, Vermilion Energy, and SNC Lavalin before moving into the mining industry with Coeur Mining. She holds a diploma in Information Technology from the Saskatchewan Institute of Applied Science and Technology, a diploma in Geological Technology from the Southern Alberta Institute of Technology, and a Bachelor of Administration from Athabasca University.


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