Orla Mining (TSX: OLA) (NYSE: ORLA) announced on Wednesday that it has received the vital Environmental Impact Assessment (EIA) from Mexico’s Secretariat of Environment and Natural Resources (SEMARNAT) for its Camino Rojo mine, situated in Zacatecas, Mexico. This significant regulatory milestone grants Orla the full authorization to proceed with the comprehensive development of the oxide open-pit deposit, including a previously planned layback area, and crucially, to commence construction of an underground exploration decline. This decline is a key step in advancing the highly anticipated Camino Rojo underground project, marking a pivotal moment for the company’s future growth strategy.

The approval signifies that Orla now possesses all the necessary permits, including the Change of Land Use approval, to unlock the full potential of the Camino Rojo resource. The mine, which has already been producing from its oxide open-pit operations, will now be able to expand its surface mining activities as outlined in its updated technical report. More importantly, the EIA greenlights the initial phase of underground development, a project that holds the promise of substantially increasing the mine’s economic life and gold production.

Strategic Importance of the Camino Rojo Underground Project

The Camino Rojo underground project has been a focal point for Orla Mining’s strategic planning, with preliminary assessments highlighting its significant economic potential. In February, Orla shared projections with The Northern Miner indicating a robust internal rate of return (IRR) of 30% over a 17-year mine life, assuming a gold price of $3,100 per ounce. These figures underscore the project’s potential to be a highly profitable venture for the company.

Further analysis presented by Orla paints an even more compelling picture. Under a hypothetical scenario with gold prices reaching $5,000 per ounce, the Net Present Value (NPV) of the underground project could surge to an impressive $3.3 billion, with the IRR escalating to an outstanding 61%. These projections, while contingent on future gold market performance, demonstrate the substantial upside potential embedded within the Camino Rojo sulphide deposit.

The capital investment required for this ambitious underground development is estimated at $608 million for initial capital expenditure, with an additional $489 million allocated for sustaining capital over the projected life of the mine. These figures, while substantial, are considered manageable within the context of developing a world-class gold asset. The company’s ability to secure financing for these phases will be a critical factor in the project’s successful execution.

Comprehensive Permitting and Operational Expansion

The EIA approval extends beyond just the underground decline. It grants Orla Mining full authorization to complete the oxide open-pit mining as detailed in the company’s recently filed technical report. This includes the crucial "layback" operations, which involve expanding the pit to the north, as well as east-west expansions. These expansions are designed to maximize the recovery of near-surface oxide gold mineralization. Furthermore, the permit allows for the necessary extensions to waste rock and low-grade stockpiles, along with the associated infrastructure required to support these expanded operations. This integrated approach ensures that the surface operations are optimized in tandem with the future underground development.

Timeline for Underground Development

The EIA also specifically authorizes the development of underground access works, which include the construction of an exploration portal and the decline itself. Work on these critical underground infrastructure elements is anticipated to commence as early as the second half of 2026. This timeline indicates a phased approach to development, allowing for thorough planning and execution of the initial underground access before full-scale production is considered. The commencement of this work will be closely watched by investors and industry analysts.

Advancing Resource Definition and Future Transition

The primary objective of the underground exploration decline is to enable further resource definition and detailed technical evaluation of the sulphide mineralization that lies beneath the current open pit. This deeper mineralization is the focus of the underground project and represents a significant untapped resource. The successful completion of the decline and subsequent exploration drilling will provide crucial data to further de-risk the project and refine future production plans. This phase is a critical "next step" toward a potential transition to full-scale underground mining at Camino Rojo, transforming the operation from a primarily oxide producer to a multi-generational, potentially blended oxide and sulphide operation.

Background and Context of Camino Rojo

The Camino Rojo project has been a cornerstone of Orla Mining’s development strategy since its acquisition. The property, located in the prolific Fresnillo mining district in Zacatecas State, is situated within a region renowned for its significant gold and silver endowments. Orla acquired the Camino Rojo project in 2019 and has since focused on advancing its oxide potential while concurrently exploring the deeper sulphide resources. The company successfully commissioned its oxide heap leach operation at Camino Rojo in early 2021, marking a significant achievement in bringing a new mine into production.

The initial phase of Camino Rojo was designed to generate free cash flow and provide a platform for further exploration and development. The success of the oxide operation has provided the financial strength and operational expertise necessary to pursue the more complex, but potentially more rewarding, underground development. The EIA approval is a testament to the company’s diligent efforts in environmental stewardship and regulatory compliance, which are paramount in Mexico’s mining sector.

Mexico’s Regulatory Environment and Orla’s Approach

Obtaining environmental permits in Mexico can be a complex and time-consuming process. SEMARNAT plays a critical role in assessing the potential environmental impacts of mining projects and ensuring that mitigation measures are in place. Orla Mining has demonstrated a commitment to working collaboratively with Mexican authorities and local communities throughout the permitting process. The company’s proactive engagement and robust environmental studies have likely contributed to the timely receipt of this crucial EIA.

The Mexican mining sector has seen increased scrutiny and evolving regulatory frameworks in recent years. However, projects that demonstrate strong environmental performance, community engagement, and economic benefits are generally viewed favorably. Orla’s successful navigation of this regulatory landscape underscores its understanding of and respect for the Mexican operating environment.

Market Reaction and Future Outlook

Following the announcement, Orla Mining’s stock experienced a notable reaction in the market. By the close of trading in Toronto, the company’s shares were down 10.4%. This short-term fluctuation, however, does not diminish the long-term strategic significance of the EIA approval. Market sentiment can be influenced by a myriad of factors, including broader market trends, investor expectations, and short-term profit-taking.

Orla Mining currently holds a market capitalization of C$6.82 billion (approximately $4.9 billion USD). The successful development of the Camino Rojo underground project is widely expected to be a key driver of future shareholder value. The company’s ability to execute on its development plans, manage costs effectively, and navigate the evolving gold market will be critical in realizing the full potential of this significant asset.

Broader Implications for Orla Mining and the Industry

The EIA approval for Camino Rojo represents a significant de-risking event for Orla Mining and its investors. It moves the company closer to becoming a multi-mine producer with a diversified production profile. The potential transition to underground mining at Camino Rojo could significantly extend the mine’s life and increase its overall gold output, positioning Orla as a more substantial player in the global gold mining landscape.

For the broader mining industry, this development highlights the importance of advanced exploration and development of deeper sulphide resources, even at established oxide operations. It also underscores the successful application of modern mining techniques and the potential for significant value creation through comprehensive project planning and regulatory compliance in jurisdictions like Mexico. The successful advancement of the Camino Rojo underground project will likely serve as a case study for other companies exploring similar development opportunities.

Next Steps and Future Milestones

The immediate next steps for Orla Mining will involve detailed engineering and planning for the underground exploration decline. The commencement of construction in the second half of 2026 will be a key milestone to monitor. Following the construction of the decline, extensive drilling and metallurgical testing will be required to fully define the sulphide resource and optimize the mining and processing plans for underground production.

Orla Mining has also indicated that it has filed an updated technical report for the property. This report will likely provide more detailed information on the updated resource estimates, mine plans, and economic assessments for both the oxide open pit and the underground project. Investors and analysts will be scrutinizing this report for further insights into the project’s economics and Orla’s strategic direction.

The Camino Rojo project, with its dual oxide and sulphide potential, is poised to be a significant contributor to Orla Mining’s future success. The receipt of the EIA is a crucial step, transforming a promising prospect into a tangible development opportunity. The company’s ability to execute on its plans and navigate the complexities of mine development will be key to unlocking the full value of this important Mexican asset.