Marathon Gold

Location: Newfoundland and Labrador, Canada
Commodity: Gold
Project Phases: Detailed Design Engineering

Client Overview

Marathon Gold is a Canadian gold development company advancing the Valentine Gold Project, positioned to become the largest gold mine in Atlantic Canada. The project represents a significant economic driver in a top-tier jurisdiction, with Marathon emphasizing safety, environmental stewardship, and collaborative engagement with local communities and Indigenous partners. In 2024, Marathon was acquired by Calibre Mining, ensuring the continued development of this high-value asset.

Client Needs

As the Valentine Gold Project progressed through detailed design engineering, Marathon Gold required integrated support to validate design readiness, align commercial contracting strategies, and mitigate execution risks. Specific challenges included:

• Reviewing EPCM contractor deliverables to confirm compliance with design intent and site conditions.
• Supporting commercial evaluations for major equipment and service contracts.
• Coordinating re‑tendering strategies and developing new scopes of work for engineering, procurement, and construction.
• Monitoring risks between engineering completion and the commencement of construction activities.
• Facilitating process safety management, including HAZOP workshops and construction work package (CWP) alignment with engineering work packages (EWP).

TMG’s Contributions

• Owner’s Team Engineering Support: Deployed experienced engineers to review EPCM deliverables such as Process Flow Diagrams, P&IDs, General Arrangement drawings, 3D models, and discipline-specific design criteria. Validated technical specifications and ensured alignment with project objectives.
• Commercial and Technical Evaluations: Conducted budget validations and technical reviews for critical procurement packages, ensuring that cost and scope aligned with the overall execution strategy.
• Re‑Tendering and Scope Development: Developed revised engineering‑procurement scopes of work to support a new RFP process, enabling Marathon to adopt a revised contracting methodology better suited to project needs.
• Process Safety and Risk Management: Led HAZOP workshops, mapped CWPs to EWPs, and provided continuous risk monitoring to address potential challenges early and maintain safe, compliant design practices.
• Ongoing Project Engineering Oversight: Provided consistent support to track engineering progress, audit contractor hours, and ensure project deliverables remained aligned with schedule and execution goals.

Results

TMG’s involvement delivered measurable value to the Valentine Gold Project:

• Early Issue Identification: Detected core process and detailed design issues, enabling resolution prior to construction and reducing the risk of costly rework.
• Improved Contracting Approach: Developed new engineering and procurement scopes that facilitated a contracting methodology shift, improving alignment between project execution and strategic goals.
• Enhanced Risk Oversight: Established robust monitoring processes to manage risks between engineering and construction phases and track vendor delivery timelines.
• Strengthened Owner Confidence: Gained trust from Marathon Gold to manage contractor oversight and audit progress metrics, ensuring transparency and accountability.

The Valentine Gold Project showcases the benefits of proactive engineering oversight and value-driven project management. TMG’s expertise in process safety, technical reviews, and contracting strategy supported Marathon Gold in advancing a flagship gold development responsibly and efficiently.