Services
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Shaft Sinking

Shaft Sinking

Dumas is one of the Americas’ leading shaft sinking contractors having undertaken numerous shaft sinking projects in North and Latin America. From the heights of the Peruvian Andes to the extremities of the deepest metalliferous mine in North America, Dumas has the experience and knowledge to provide all shaft services.

C.Y. Thomas Li​​
C.Y. Thomas Li​​ Chairman – G.L. Tiley & Associates Ltd.
"Dumas is an innovative shaft construction company, they have many years of shaft construction experience and with an excellent track record on construction safety and cost controls.“
Dominick Turgeon
Dominick Turgeon, P. Eng.​ Director – Mining Quebec
"For all projects… our partnership with Dumas has been a guarantee of success.  They provided a right amount of boots–on–the–ground experience and know-how; this combined with our engineering knowledge, it guaranteed success for our projects.”
Rob Carter
Rob Carter - Vice President, Manitoba Business Unit, Hudbay Minerals Inc.
Dumas Contracting has been an integral part of Hudbay’s mining team at our Lalor Mine. They have provided a full-service lateral and vertical development advance, construction and mechanical team that works closely with our people, embracing Hudbay’s core values and our “one team one vision” approach to work management. Lalor has transitioned from a base metal mine to a gold operation, and mining of the gold and copper-gold zones at current production rates would not have been possible without the full support of the Dumas team.
Rocky McLellan
Rocky McLellan-​ General Manager North American Underground Operations​
“Major Drilling has partnered with Dumas on multiple projects. The expertise within each company have created a synergy that compliments both groups to provide superior performance for our clients on Projects throughout North America.” 
Service
Engineering
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