São Paulo, Brazil – In a move underscoring the accelerating global drive for diversified critical minerals supply chains, Brazilian Critical Minerals (BCM) has officially appointed Altris Engineering as the lead design engineer for the Front-End Engineering and Design (FEED) phase of its Ema Rare Earth Project. This pivotal decision, announced as of early September 2026, propels the Ema Project closer to realization, marking a significant milestone in the development of a potentially vital new source of rare earth elements.

The appointment extends Altris’s integral role in the Ema Project, following their successful leadership of the preceding Bankable Feasibility Study (BFS). This continuity is a strategic advantage, aiming to maintain a robust foundation of engineering knowledge and mitigate potential risks and delays commonly associated with transitioning between different consultants at such critical development stages. For the mining industry, ensuring seamless progression from feasibility to detailed design is paramount for project success and capital efficiency.

Advancing the Ema Rare Earth Project

The Ema Rare Earth Project, situated in Brazil, is positioned to become an important contributor to the global supply of rare earth elements (REEs). These elements, a group of 17 metallic elements, are indispensable components in a wide array of high-tech applications, including electric vehicle motors, wind turbines, consumer electronics, defense systems, and advanced medical technologies. The growing demand for REEs, coupled with concerns over supply chain vulnerabilities and geopolitical considerations, has intensified the global search for new, ethically sourced deposits. Brazil, with its vast mineral potential, is increasingly emerging as a strategic player in this critical minerals landscape.

BCM's focus on rare earths is timely, as the industry navigates a complex environment characterized by surging demand and a concentrated supply base. Developing new projects like Ema is not merely an expansion of mining capacity but a strategic imperative for industrial nations seeking to secure access to these vital materials for their clean energy transitions and national security.

The Critical Role of the FEED Phase

The FEED phase is a crucial stage in the development of any major mining project, serving as the bridge between a broad feasibility study and the detailed engineering required for construction. Expected to span approximately 24 weeks, this phase for the Ema Project will see Altris Engineering undertaking extensive responsibilities:

  • Process Plant Engineering and Design: Developing the detailed engineering blueprints for the Ema processing facilities. This includes intricate designs for equipment layouts, piping, electrical systems, and control mechanisms essential for extracting and refining rare earth elements.
  • Related Infrastructure Development: Designing the supporting infrastructure necessary for a fully operational mine, which can encompass power supply, water management systems, access roads, administrative buildings, and tailings storage facilities.
  • Integration of Ongoing Studies: Overseeing the assimilation of results from ongoing testwork, field investigations, and optimization studies. This ensures that the FEED design incorporates the latest technical insights and operational improvements, leading to a more efficient and robust final plant.
  • Equipment Package Development: A key output will be the creation of comprehensive equipment packages. These detailed specifications are critical for obtaining technically conforming vendor quotations and positioning the project for efficient procurement readiness. Altris will be responsible for equipment specification, compiling supplier documentation, and performing the technical evaluation of vendor proposals.

The successful completion of the FEED phase is designed to de-risk the project significantly, providing greater certainty around capital expenditure (CAPEX) and operational expenditure (OPEX) estimates. This detailed level of planning is essential for attracting financing and securing a positive Final Investment Decision (FID), which ultimately greenlights the transition into detailed engineering, procurement, and construction.

Technical Scope and Operational Details

The Ema Project’s processing facilities will specifically address the critical steps from resource extraction to product load-out. The scope of Altris's work during FEED covers:

  • Receipt of Pregnant Leach Solution (PLS): The process begins with the reception of a PLS, which will be generated by an in-situ recovery (ISR) wellfield. ISR is an increasingly adopted mining method, particularly for certain types of rare earth deposits, where valuable minerals are extracted by dissolving them in a solution within the ore body, rather than excavating the ore itself. This method often offers environmental benefits, reduced surface disturbance, and potentially lower capital and operating costs compared to traditional open-pit or underground mining, though it requires specific geological and hydrogeological conditions.
  • Impurity Removal: Following the PLS generation, sophisticated metallurgical processes will be designed to remove undesirable impurities, ensuring the purity of the rare earth stream.
  • Mixed Rare Earth Carbonate Precipitation: The purified rare earth solution will then undergo precipitation to form a mixed rare earth carbonate (MREC) product. MREC is an intermediate concentrate that contains various rare earth elements. While not the final, separated individual rare earth oxides, it is a significant step towards a marketable product and often forms the basis for further refining and separation at specialized facilities.
  • Dewatering and Product Load-out: The final stages involve dewatering the MREC to produce a solid, transportable product, followed by its preparation for load-out and shipment.

This detailed processing flow highlights BCM's strategy to produce a high-quality intermediate product, which can then be supplied to downstream processors for the separation of individual rare earth oxides.

Strategic Partnership and Industry Confidence

Retaining Altris Engineering for this critical stage underscores BCM’s commitment to leveraging existing project knowledge and mitigating project execution risks. As Michael Ehlers, Managing Director of Altris, stated, "Altris is delighted to continue its partnership with BCM as the Ema Rare Earth Project moves into the next stage of engineering. Our involvement through the BFS has given us a detailed understanding of the project and, importantly, allows the FEED phase to commence with continuity of design knowledge and a clear focus on execution." This sentiment reflects a shared vision for efficient and effective project development.

The continuity provided by Altris, having already completed the BFS, is invaluable. It ensures that the FEED phase benefits from an intimate understanding of the project's technical intricacies, challenges, and opportunities, thereby minimizing the learning curve and potential for costly redesigns or misinterpretations that can arise when a new engineering firm takes over mid-project. This approach is a testament to sound project management practices within the mining sector.

Future Outlook and Local Integration

Upon the successful conclusion of the 24-week FEED phase, the Ema Project is slated to transition into its next crucial stages. A key aspect of the project's future development involves local expertise: a Brazilian contractor will assume responsibility for the detailed design and construction documentation. This commitment to local engagement ensures compliance with specific Brazilian regulatory frameworks and taps into domestic engineering and construction capabilities, further strengthening the project's roots within the national economy.

Altris Engineering will play a supporting role during this transition, providing essential technical handover and ensuring seamless alignment between the extensive engineering work completed during the feasibility and FEED stages and the subsequent detailed design by the local contractor. This collaborative approach aims to facilitate a smooth progression toward the ultimate goal of construction and eventual rare earth production.

The Ema Rare Earth Project, with its progression to the FEED phase, represents a significant step for Brazilian Critical Minerals and a promising development for the global critical minerals sector. As the world continues its rapid shift towards green technologies, projects like Ema become increasingly vital in establishing resilient and diversified supply chains for the essential elements of the future. The diligent work in the FEED phase is crucial in solidifying the technical and economic foundations necessary for Ema to emerge as a significant contributor to rare earth supply.