Published: April 6, 2026 |

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Troilus Mining released an engineering and project execution update for its wholly owned copper-gold Troilus Project located in north-central Québec.

“Troilus is moving decisively from project definition toward execution. Engineering advancement is progressing in parallel with contractor integration, technical validation, and execution planning. Our focus is clear: to enter construction with a design that is robust, independently validated, and supported by a coordinated delivery framework. Each step we are taking today is aimed at strengthening confidence in the project’s preparedness for its next stage of development,” said Justin Reid, chief executive officer of Troilus.

The company has completed basic engineering, establishing a fully integrated project definition framework, and is advancing detailed engineering across major plant, infrastructure, and site development disciplines. This progression enables procurement planning, construction sequencing, and capital deployment strategies to advance in parallel with final construction-level design. In tandem, Troilus has implemented targeted technical validation and execution planning initiatives designed to further strengthen project certainty ahead of a formal construction decision.

PROJECT EXECUTION PROGRESS HIGHLIGHTS

• Basic engineering completed, and detailed engineering advancing across all major disciplines
• Integrated EPCM structure formalized with BBA Consultants, in partnership with EBC Inc. for construction
  management integration
• Expanded geotechnical and metallurgical validation programs underway to enhance design certainty
• Early contractor engagement and independent third-party technical review advancing across key process and
  design areas
• Expanded, construction-ready leadership team in place, with contractor and supplier engagement progressing
  in parallel
• Site readiness accelerating through continued pit dewatering, camp expansion to 200 personnel, and
  infrastructure upgrades aligned with development planning

ONGOING TECHNICAL DE-RISKING INITIATIVES

In parallel with engineering progression, Troilus has advanced several key technical initiatives aimed at enhancing project predictability and reducing execution risk.

• Geotechnical Program

A comprehensive geotechnical investigation program has been underway since fall 2025 and will continue through spring 2026. Drilling and site characterization across key plant and infrastructure areas are refining foundation design parameters and earthworks planning, directly strengthening schedule and cost certainty.

• Metallurgical and Process Optimization

Additional metallurgical and process testwork has been undertaken to further validate plant design assumptions, including ore hardness characterization and recovery performance. This work supports equipment sizing confirmation, operational ramp-up planning, and long-term plant reliability.

INTEGRATED EPCM STRUCTURE AND INDEPENDENT REVIEW

Troilus has formalized a fully integrated EPCM structure through a partnership between BBA Consultants, a Québec-based engineering firm with extensive mining and industrial project experience, and EBC Inc., a leading Canadian civil and infrastructure contractor with a strong track record in large-scale industrial construction.

Under this model, BBA is leading engineering and procurement with support from EBC providing construction management oversight, with constructability embedded directly into detailed design and engineering decisions aligned with field execution realities. This integrated approach reduces interface risk and enhances execution coordination.

In addition, the company has engaged Sedgman to conduct an independent process plant review, providing third-party technical validation of the plant design based on recent large-scale mining project experience.

“By integrating engineering and construction management from the outset, we are strengthening execution readiness well before the commencement of construction activities. BBA brings deep engineering capability, and EBC brings proven construction delivery experience. Embedding constructability into detailed design significantly reduces downstream execution risk and enhances schedule discipline,” said Denis Rivard, EVP Projects.

VALUE ENGINEERING AND CONFIGURATION OPTIMIZATION

In parallel with engineering progress, Troilus continues to advance targeted value optimization initiatives across plant configuration, site layout, infrastructure integration, and construction sequencing. These efforts are designed to enhance capital productivity, streamline construction execution, and strengthen long-term operating efficiency — while preserving the project’s core design and performance objectives.

ORGANIZATION STRENGTHENING AND CONSTRUCTION PREPARATION

As the project advances toward execution, Troilus has significantly strengthened its senior project and operational leadership team while advancing early contractor and supplier engagement.

Recent leadership additions include:

• Denis Rivard, EVP Projects
Rivard is a professional engineer with more than 40 years of experience in global project leadership across mining, infrastructure, and industrial development. His career includes senior roles with Freeport-McMoRan, Ausenco, SNC-Lavalin, and WorleyParsons, overseeing large-scale capital projects across development and construction phases. Most recently, he served as vice president of the Réseau Express Métropolitain (REM) project at CDPQ Infra, contributing to the delivery of Montréal’s 67-kilometer light rail network.

• Andy Fortin, VP Operations and General Manager
Fortin brings more than 28 years of experience in mineral processing and project management, including 12 years at the former Troilus Mine during its construction and operating phases under Inmet Mining, where he held senior roles including chief metallurgist and Process and Maintenance plant manager. He has also held senior operational leadership positions at Newmont’s Éléonore Mine and Agnico Eagle’s Meadowbank Mine, contributing deep operational and site-specific expertise as Troilus advances toward development.

• Richard Groleau, Construction Director
Groleau is a mechanical Engineer with more than 20 years of global experience in construction and project management on complex, large-scale mining developments. Most recently, he served as TMF/GFC construction superintendent on Equinox Gold’s Greenstone Project, contributing to the successful execution of one of Canada’s largest recent gold mine builds. His expertise spans construction management, project readiness, safety leadership, scheduling, cost controls, and operational handover.

• Marty Rendall, CFO
Rendall brings more than 30 years of senior financial leadership experience in the mining industry, spanning exploration, project development, construction, and operations. He previously served as CFO of Victoria Gold for 17 years, where he played a key role in advancing the Eagle Gold Mine from exploration through construction and into production, supporting the company in securing over C$1 billion in financings. Rendall also served as CFO of Electra Battery Materials, contributing to the advancement and financing of its Ontario cobalt refinery project, and has held senior financial roles at De Beers Canada and Breakwater Resources.

• Chris Sharpe, VP Technical Services
Sharpe is a mining engineer with extensive experience in mine planning, open pit geotechnical studies, and financial modeling. He spent more than five years at Centerra Gold, most recently as director, Projects and Technical Services, and previously held engineering leadership roles at Aurvista Gold and AuRico Gold.

Construction planning activities are progressing in parallel, including early engagement with regional and Indigenous contractors, equipment suppliers, and key service providers to support future procurement sequencing and workforce integration.

CURRENT AND UPCOMING SITE ACTIVITIES

In parallel with engineering advancement, site-level activities continue to progress in preparation for development. Dewatering of the J Pit has now been completed, and pumping equipment is being mobilized to initiate dewatering of the Z87 Pit in the near term. These activities are an important step in advancing site readiness and enabling future construction sequencing.

Camp expansion activities are also underway, with the existing 80-person accommodation facility being expanded to support approximately 200 personnel. This upgrade enhances the company’s ability to support ongoing engineering, technical programs, contractor mobilization, and future construction workforce requirements.

Additional site upgrades are progressing, including road improvements, enhancements to power infrastructure, and upgrades to site communications and technology systems to support increased operational activity. Together, these initiatives reflect continued advancement toward a construction-ready site environment.

Troilus Mining is a Canadian development-stage mining company focused on the systematic advancement of the former gold and copper Troilus Mine towards production. Troilus is located in the tier-one mining jurisdiction of Quebec, Canada positioning it as a cornerstone project in North America.

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