Eldorado Gold Secures Critical Operating Authorization for Ormaque Deposit in Quebec

Val-d'Or, Quebec, Canada – Eldorado Gold Corporation, a prominent international gold producer, announced on March 17, 2026, a significant milestone in the development of its Lamaque Complex: the receipt of operating authorisation for the high-grade Ormaque deposit. This pivotal approval, granted by the Quebec Ministry of the Environment, the Fight Against Climate Change, Wildlife and Parks, allows Eldorado to commence underground mining operations at Ormaque and integrate its ore into the existing Sigma Mill processing stream. The move is a testament to Eldorado's methodical advancement of its assets and carries substantial implications for the company's operational flexibility and the long-term future of its Quebec operations.

Eldorado Secures Key Authorization for Ormaque

The authorization marks a critical turning point for the Ormaque deposit, enabling Eldorado Gold to transition from extensive exploration and development to active ore extraction. This allows the company to capitalize on the substantial development capital already invested in the broader Lamaque Complex, particularly the underground access via the Triangle–Sigma decline. By leveraging these existing foundational elements, Eldorado can bring new, high-grade material to production more efficiently, bypassing the prolonged timelines and significant expenditures typically associated with greenfield project development. The ability to haul Ormaque’s high-grade underground ore directly to the established Sigma Mill is a key operational advantage, streamlining logistics and reducing immediate capital outlay for new surface infrastructure.

Speaking on the achievement, Eldorado Gold CEO George Burns stated, "The Ormaque operating authorisation demonstrates our ability to advance a discovery, reported in January 2020, efficiently through to operating approval in Québec, supported by highly prospective geology across a strong land position." This statement highlights not only a successful regulatory navigation but also the efficiency of Eldorado's project development pipeline from initial discovery announcement to operational readiness within a six-year timeframe, a commendable pace within the mining industry, especially in a jurisdiction with stringent environmental standards like Quebec.

The Lamaque Complex: A Strategic Cornerstone

The Lamaque Complex, located in the prolific Abitibi Gold Belt near Val-d’Or, Quebec, is a cornerstone asset within Eldorado’s global portfolio. It comprises several significant gold deposits, including Triangle, Parallel, and now Ormaque, all strategically positioned to supply ore to the centralized Sigma Mill. Ormaque's integration into this complex processing network is seamless, as it takes full advantage of the established underground infrastructure, including the critical Triangle–Sigma decline. This pre-existing access provides immediate pathways for ventilation, material handling, and personnel movement, sidestepping the need for extensive new mine development. The strategic proximity of Ormaque to the Sigma Mill significantly enhances Eldorado's production flexibility. It introduces an additional high-grade ore source that can be blended with material from the Triangle deposit, optimizing mill feed quality and consistency. This blending strategy is vital for maintaining steady plant performance, extending throughput, and maximizing gold recovery rates, ultimately contributing to stronger overall operating margins.

Unveiling Ormaque's Geology and Resource Potential

The Ormaque deposit itself presents compelling geological characteristics that underpin its potential as a significant long-term ore source. It is delineated into distinct zones, each offering unique mining and processing considerations:

  • Ormaque SE Zone: This zone features a system of flat-lying, high-grade gold veins situated between 400 and 900 meters below the surface. The geometry of these veins can be advantageous for certain bulk mining methods, potentially allowing for more efficient extraction once fully developed. The flat-lying nature often implies a broader lateral distribution that can be systematically mined. Westward extensions of these veins have shown similar characteristics, indicating significant potential for further expansion and resource definition beyond the current limits.
  • Garnet Zone: In contrast, the Garnet Zone is characterized by unique mineralogy and alteration traits within a steeply inclined shear zone. Shear zone-hosted deposits, while sometimes more structurally complex, can host very high-grade ore shoots and are often amenable to selective underground mining techniques. The distinct mineralogy may require specific metallurgical considerations, which Eldorado's technical team will undoubtedly address in ongoing studies.

The close proximity of both the Ormaque SE and Garnet Zones to the Lamaque processing facilities is a critical economic advantage. It minimizes transportation costs and allows for their potential contribution as future mill feed, reinforcing the long-term viability and projected lifespan of the Lamaque operations. The geological prospectivity of these zones underpins Eldorado’s confidence in ongoing exploration efforts.

Enhancing Operational Flexibility and Mill Throughput

The introduction of Ormaque’s ore significantly augments Eldorado’s existing operational capabilities at Lamaque. As George Burns highlighted, "Ormaque provides an additional source of high-grade ore to support the Sigma Mill, enhances our production flexibility and builds on the investment our operating team has made in underground development." This flexibility is crucial in managing variations in ore body characteristics, ensuring a consistent feed grade, and adapting to potential localized operational challenges from other deposits within the complex. By having multiple active ore sources, Eldorado can optimize its mining schedule and blending strategies to achieve the best possible economic outcomes.

Beyond immediate ore supply, Eldorado is proactively planning for the future by conducting studies concerning the Sigma Mill’s expansion. These pivotal studies aim to increase the mill’s throughput capacity from its current approximately 2,500 tonnes per day (tpd) towards its permitted capacity of 5,000 tpd. Doubling the mill's processing capability would be a transformative step, predicated on optimizing existing infrastructure and identifying opportunities for process improvements. Such an expansion would not only accommodate anticipated increased ore volumes from deeper and lateral extensions of Ormaque and Triangle but also unlock substantial growth potential for the entire Lamaque Complex, solidifying its position as a high-capacity, long-life asset.

Eldorado's Strategic Vision and Future Exploration

The Ormaque authorization is a tangible outcome of Eldorado’s broader corporate strategy, which emphasizes integrating existing infrastructure with ongoing geological exploration to enhance operational flexibility and add long-term shareholder value. The company’s commitment extends to aggressive exploration programs in 2026, specifically targeting lateral and depth extensions at Ormaque. This systematic approach aims to convert known mineralization into reserves and identify entirely new high-grade zones, ensuring a robust pipeline of future ore. Concurrently, continuous exploration and resource conversion initiatives at the Triangle deposit are slated to unlock additional growth potential and prolong the mine’s lifespan, demonstrating a holistic approach to asset management.

CEO Burns underscored Ormaque’s importance: "Ormaque further reinforces the Lamaque Complex as a cornerstone asset within Eldorado’s portfolio." This statement reflects the deposit’s expected contribution to the company’s gold production profile, emphasizing its strategic value within a diversified international portfolio that also includes operations in Turkey and Greece.

Broader Implications for Eldorado and the Industry

For investors, this authorization de-risks a significant portion of Eldorado's growth strategy in Quebec. It signals efficient project execution in a tier-one mining jurisdiction and adds tangible value through increased reserve potential and production flexibility. In the broader context, this operational approval for Ormaque also aligns with Eldorado’s recent strategic moves aimed at portfolio diversification and expansion. Just last month, the company announced its intention to acquire Foran Mining through a merger agreement valued at approximately C$3.8 billion (equivalent to approximately $2.78 billion USD at the time of announcement), forming a gold-copper mining company. While the Foran acquisition targets a different commodity mix (gold-copper), the successful advancement of Ormaque demonstrates Eldorado’s capability to grow organically and through acquisition, bolstering its overall market presence and commodity exposure.

The gold mining industry continues to seek high-grade, low-cost assets in stable jurisdictions, and the Lamaque Complex, with its proven track record and now expanded potential through Ormaque, fits this profile perfectly. The ability to increase overall gold production from an existing facility, rather than developing entirely new sites, represents significant capital efficiency and often leads to higher returns on investment. This development also highlights the ongoing attractiveness of Quebec as a premier mining jurisdiction, supported by a clear regulatory framework and significant geological endowment.

Conclusion

The operating authorization for Eldorado Gold’s Ormaque deposit is a strategic victory that will yield both immediate and long-term benefits. By seamlessly integrating a new high-grade ore source into the established Lamaque Complex, Eldorado enhances its operational flexibility, extends mine life, and optimizes mill throughput. Coupled with ambitious exploration programs and plans for mill expansion, Ormaque reinforces Lamaque's status as a critical asset and positions Eldorado Gold for sustained production and value creation in a dynamic global gold market. This development, rooted in efficient project execution and strategic leveraging of existing infrastructure, exemplifies a prudent yet aggressive approach to enhancing shareholder value in the mining sector.