Hannukainen Mining Explores the Beneficiation Potential of Cobalt and Rare Earth Elements

By Elina Friman, Hannukainen Mining

Hannukainen Mining participates in the OPTIMINER project, which aims to explore the beneficiation potential of cobalt and rare earth elements (REEs) from IOCG-type ore. The project as a whole plays a key role in developing innovative methods for recovering critical raw materials essential to Europe’s industrial and technological resilience.

During the current phase of OPTIMINER, the focus has been on preparing for pilot beneficiation and test mining.

This stage involves a comprehensive review of existing mineralogical data on cobalt and REEs, alongside the exploration of theoretical beneficiation possibilities for these elements. In addition, samples have been provided to OPTIMINER consortium partners for further studies.

A major aspect of the project centers on optimizing water circulation and minimizing waste, with particular attention to tailings management. By optimizing the beneficiation process, the goal is to improve overall process efficiency and reduce the generation of waste streams.

Hannukainen Mining is currently in the permitting phase for the Kolari Mine project in northern Finland.

The operation aims to produce iron concentrate as well as copper-gold concentrate — contributing to Europe’s supply of critical and strategic raw materials.

The potential recovery of cobalt and REEs adds a valuable dimension to this goal, further advancing the region’s self-sufficiency in critical resources and contributing to the responsible development of the European mining sector.

Learn more about the use cases of the OPTIMINER project by visiting the dedicated project page. 

OPTIMINER Consortium Charts a Clear Path Forward During Online Month 6 Meeting

By Eleni Natsi, CORE Innovation Centre (CORE IC)

Following the successful kick-off meeting in Athens hosted by project coordinator I-SENSEGroup/ICCS, the OPTIMINER consortium reconvened virtually for its Month 6 meeting to assess progress, align on next steps, and solidify plans for the months ahead.

This online session served as a comprehensive check-in on all project activities and demo cases, offering each partner the opportunity to present updates from the past six months and outline planning for the next phase. Central to the agenda was a detailed review of each Work Package (WP), highlighting both the methodologies applied and the specific milestones set for the remainder of the year.

As the meeting drew to a close, proposals from the Steering Committees were discussed and  the consortium outlined clear conclusions and key takeaways for all partners. Planning for the next six months was consolidated, with a focus on coordination between work packages, streamlined reporting, and enhanced communication across teams.

The wrap-up session emphasized continued alignment with OPTIMINER’s mission: advancing sustainable and digital mining operations in Europe through innovation, data-driven tools, and cross-sector collaboration.

Stay tuned for more updates as the project continues to evolve!

OPTIMINER project kicks off in Athens to advance sustainable mining

By Eleni Natsi, CORE Innovation Centre (CORE IC)

The OPTIMINER project officially launched with a two-day kick-off meeting in Athens, Greece, hosted by coordinator I-SENSE Group/ICCS. The event brought together 21 partners from 8 countries to align on goals and strategy for this ambitious initiative aimed at revolutionising Europe’s mining sector.

OPTIMINER focuses on the sustainable and efficient recovery of critical raw materials (CRMs) like magnesium, tungsten, neodymium, copper, and cobalt through five innovative modules: REMINER, DIGIMINER, ECOMINER, DEMOMINER, and GLOBEMINER. These cover everything from AI-powered CRM recovery and smart digital monitoring to real-world pilots and global outreach.

With a €7.29 million budget over four years, OPTIMINER will combine advanced technologies and real-use case implementations across Europe and Chile to support greener, more resilient mining practices.

Dive into more details about this exciting project in this blog post by one of our consortium partners, CORE Innovation Centre (CORE IC).