Troilus Files Environmental and Social Impact Assessment for the Troilus Copper-Gold Project

Rhea-AI Summary

Troilus Gold Corp (OTCQX:CHXMF) has filed its Environmental and Social Impact Assessment (ESIA) for the Troilus Copper-Gold Project with both Quebec and Canadian government authorities. The filing represents a major milestone in advancing one of North America's largest undeveloped gold and copper projects towards construction.

The ESIA submission, developed over five years, includes extensive community consultation with Cree Nations and local communities, and benefits from the site's history as a past-producing mine (1996-2010). Key environmental findings confirm the project's waste rock is non-acid-generating, significantly reducing environmental risks. The review process is expected to conclude by year-end 2026.

Positive

• Project benefits from existing data and regional understanding as a past-producing mine (1996-2010)
• Waste rock confirmed as non-acid-generating, reducing environmental risks and long-term treatment costs
• Rolling submission model adopted to potentially streamline permitting timeline
• Extensive community engagement completed with Indigenous and local stakeholders

Negative

• Extended regulatory review period expected to last until year-end 2026
• Project still requires final environmental approvals from both provincial and federal authorities

MONTREAL, June 25, 2025 (GLOBE NEWSWIRE) -- Troilus Gold Corp. (“Troilus” or the “Company”, TSX: TLG; OTCQX: CHXMF; FSE: CM5R) is pleased to announce that it has officially filed the Environmental and Social Impact Assessment (“ESIA”) for its flagship Troilus Copper-Gold Project (“Troilus” or the “Project”) with both the Government of Québec, via the Ministère de l’Environnement, de la Lutte contre les changements climatiques, de la Faune et des Parcs (“MELCCFP”), and the Government of Canada, via the Impact Assessment Agency of Canada (“IAAC”).

The submission of the ESIA marks a major milestone in the development of the Troilus Project, representing the culmination of over five years of comprehensive baseline studies, robust technical evaluations, and meaningful engagement with Indigenous and local communities. As one of the largest undeveloped gold and copper projects in North America, this filing is a key step in advancing Troilus along its path towards construction.

Jacqueline Leroux, Troilus’ Vice President of Environment and Permitting, commented, “The ESIA submission is a defining moment for Troilus that reflects the unwavering dedication of our internal team and partners to advance this project in a responsible, transparent, and collaborative manner. This milestone not only derisks the Project, but also reinforces our long-standing commitment to sustainable development and positive impact for the communities in which we operate.”

Key highlights of the ESIA include:

• Extensive community consultation: The ESIA includes the results of extensive engagement with the Cree Nation of Mistissini, Oujé-Bougoumou Cree Nation, the Cree Nation Government and the communities of Chibougamau and Chapais, which helped shape project design and mitigation strategies.
  
  
• Historical familiarity with the site: As a past-producing mine (1996–2010), Troilus benefits from both robust legacy data and a high level of regional understanding of mining operations and their impacts.
  
  
• Positive environmental findings: Independent studies conducted by Coalia, the National Research Council of Canada, Lamont, and the Minesite Drainage Assessment Group (“MDAG”), confirm that the Project’s waste rock is non-acid-generating, significantly reducing environmental risk and long-term water treatment requirements.
  

The ESIA was developed in collaboration with BluMetric Environmental Inc., and Stantec, two leading environmental and engineering firms. Under a rolling submission model, adopted in coordination with the IAAC and Cree Nation Government, sections of the ESIA were submitted in advance of the final report (see press release from January 29, 2025), allowing regulators to begin their assessment early and provide feedback throughout the drafting process. This is expected to streamline the overall permitting timeline.

With the ESIA filing now complete, the Project formally enters the provincial and federal review process. In Québec, the submission will be reviewed by COMEX (“Comité d’examen des répercussions sur l’environnement et le milieu social” or “Environmental and Social Impact Review Committee”), under the James Bay and Northern Québec Agreement, while federally, the IAAC will lead a parallel review supported by public and Indigenous consultations. Final decisions are anticipated by year-end 2026.

Troilus remains committed to transparent engagement and collaborative development, and looks forward to continuing its work with local and Indigenous partners, as well as government stakeholders, to responsibly advance one of Canada’s most significant critical mineral projects.

About Troilus Gold Corp.

Troilus Gold Corp. 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, where it holds a large land position of 435 km² in the Frôtet-Evans Greenstone Belt. A Feasibility Study completed in May 2024 supports a large-scale 22-year, 50ktpd open-pit mining operation, positioning it as a cornerstone project in North America.

For more information:

Caroline Arsenault
VP Corporate Communications
+1 (647) 276-0050
info@troilusgold.com 

Cautionary Note Regarding Forward-Looking Statements and Information

This press release contains “forward-looking statements” within the meaning of applicable Canadian securities legislation. Forward-looking statements include, but are not limited to, statements regarding the impact of the ESIA submission on the Company, the development timetable of the Project, the likelihood that the permitting timeline will be streamlined, the likelihood that the federal and provincial review process will result in a final permitting decision on the timeline projected, or at all, ; the estimation of mineral resources and reserves; realization of mineral resource and reserve estimates; the timing and amount of estimated future exploration; costs of future activities; capital and operating expenditures; success of exploration activities; the anticipated ability of investors to continue benefiting from the Company’s low discovery costs, technical expertise and support from local communities, the timing and amount of estimated future exploration; and the anticipated results of the Company’s ongoing drill program and their possible impact on the potential size of the mineral resource estimate. Generally, forward-looking statements can be identified by the use of forward-looking terminology such as “plans”, “expects” or “does not expect”, “is expected”, “budget”, “scheduled”, “estimates”, “forecasts”, “intends”, “continue”, “anticipates” or “does not anticipate”, or “believes”, or variations of such words and phrases or statements that certain actions, events or results “may”, “could”, “would”, “will”, “might” or “will be taken”, “occur” or “be achieved”. Forward-looking statements are made based upon certain assumptions and other important facts that, if untrue, could cause the actual results, performances or achievements of Troilus to be materially different from future results, performances or achievements expressed or implied by such statements. Such statements and information are based on numerous assumptions regarding present and future business strategies and the environment in which Troilus will operate in the future. Certain important factors that could cause actual results, performances or achievements to differ materially from those in the forward-looking statements include, amongst others, currency fluctuations, the global economic climate, dilution, share price volatility and competition. Forward-looking statements are subject to known and unknown risks, uncertainties and other important factors that may cause the actual results, level of activity, performance or achievements of Troilus to be materially different from those expressed or implied by such forward-looking statements, including but not limited to: there being no assurance that the exploration program or programs of the Company will result in expanded mineral resources; risks and uncertainties inherent to mineral resource and reserve estimates; the high degree of uncertainties inherent to feasibility studies and other mining and economic studies which are based to a significant extent on various assumptions; variations in gold prices and other metals, exchange rate fluctuations; variations in cost of supplies and labour; receipt of necessary approvals; availability of financing for project development; uncertainties and risks with respect to developing mining projects; general business, economic, competitive, political and social uncertainties; future gold and other metal prices; accidents, labour disputes and shortages; environmental and other risks of the mining industry, including without limitation, risks and uncertainties discussed in the Company’s latest Annual Information Form, its technical reports and other continuous disclosure documents of the Company available under the Company’s profile at www.sedarplus.ca. Although Troilus has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such statements. Accordingly, readers should not place undue reliance on forward-looking statements. Troilus does not undertake to update any forward-looking statements, except in accordance with applicable securities laws.

FAQ

When did Troilus Gold (CHXMF) file its Environmental and Social Impact Assessment?

Troilus Gold filed its ESIA for the Troilus Copper-Gold Project on June 25, 2025 with both Quebec and Canadian government authorities.

What are the key environmental findings in Troilus Gold's ESIA?

Independent studies confirmed that the project's waste rock is non-acid-generating, which significantly reduces environmental risk and long-term water treatment requirements.

When is the final decision expected for Troilus Gold's environmental assessment?

Final decisions on the environmental assessment are anticipated by year-end 2026 following reviews by both provincial (COMEX) and federal (IAAC) authorities.

Which communities were consulted during Troilus Gold's ESIA process?

The ESIA included extensive consultation with the Cree Nation of Mistissini, Oujé-Bougoumou Cree Nation, the Cree Nation Government, and the communities of Chibougamau and Chapais.

What is the significance of the Troilus Copper-Gold Project?

The Troilus Project is one of the largest undeveloped gold and copper projects in North America, and represents a significant critical mineral project in Canada.