Dumas Contracting Ltd.

Evolved into a full

service firm handling underground mine construction, development, production, and engineering

Secured a notable five

year underground development and production contract at SilverCrest’s Las Chispas mine in Mexico

Capabilities include shaft sinking, lateral and vertical development, hoisting systems, and full mine infrastructure delivery

Backed by STRACON Group since 2018, combining open

pit and underground mining expertise under one roof

Noteworthy for handling complex shaft

sinking projects in challenging ground conditions and extreme depths

Valuing employees, health & safety, the environment, and communities, fostering pride among team members.

Thinking like a client, being proactive, delivering on commitments, making clients successful, adding value, and keeping clients informed.

Improving, renewing, creating, and developing to be better tomorrow, both as individuals and as a company.

Emphasizing teamwork, setting team objectives, and celebrating team success.

Being action and results oriented, developing expertise, following the plan

execute

improve cycle, and sharing best practices.

Support clients in achieving their own sustainability business goals via technology, innovation, and operational excellence in underground mining services.

Participate responsibly across the mining value chain to contribute to an improved environment and better planet overall.

Published 2023 Sustainability Report and 2023 Data Book (available on company website).

Emphasis on safety innovation, operational excellence, and cost controls as part of sustainability approach.