A Long-term Vision:

Xstreco recognizes the importance of investing in the growth and development of its employees and the communities in which it operates, while maintaining a long-term perspective on its goals. To maintain this commitment, the company diligently seeks growth opportunities by evaluating strategic priorities and exploring new business ventures. Xstreco's primary objective is to establish itself as an industry leader by building a diverse portfolio of projects that can be successfully delivered on time and within budget.

Generating Value for Shareholders and Stakeholders:

Xstreco's Approach

Xstreco's overarching goal is to create substantial value for shareholders and stakeholders. The company focuses on honing its core competencies, implementing effective risk management strategies and embracing change as a catalyst for continued success. By focusing on these key elements, Xstreco ensures that it remains a dynamic and competitive force within the industry, fostering a prosperous and sustainable future for all stakeholders.


Nicolas Ehrminger


Chief Executive Officer



Nicolas Ehrminger is a dedicated and results-oriented leader, committed to fostering growth and innovation. His service in the military, highlighted by his achievements as a qualified athlete and aerobatic pilot, has instilled in him a strong sense of discipline and leadership.

Transitioning to the field of compliance and regulation, Nicolas has exhibited remarkable proficiency. At Xstreco, he has been instrumental in advancing cutting-edge infrastructure, particularly in the areas of compliance, administration, and sustainability.

Nicolas' unwavering dedication to excellence is a reflection of his esteemed family heritage. His great-grandfather, Johannes Nestler, a pioneering mining engineer who graduated from the prestigious "Bergakademie" in Freiberg, Germany, in 1926, established a family legacy deeply rooted in the mining industry. Upholding this legacy, Nicolas is dedicated to perpetuating the family’s tradition of excellence and innovation in the mining sector, while also embracing modern principles of compliance and sustainability.


Antonio Espada


Managing Director for Development



Antonio Espada discovered his passion for engineering and technology at an early age. He began his career at companies such as CASA and Aeroterwia, developing innovative thermo-mechanical solutions.

His talent and dedication led to promotions and industry recognition.‍ After military service, Antonio Espada joined IPIAC, a Brazilian and Paraguayan company specializing in the production of mining machinery. His expertise helped him rise through the ranks and play a critical role in the company's success. In the early 2000s, he moved to Ecuador to establish MIMADER SA, his third mining company.

Despite challenges, his leadership helped MIMADER become a leader in Ecuador's mining industry.‍ Returning to Spain, he founded and managed several metallurgical companies, continuing to innovate and grow the industry. With over 30 years of experience in the mining of metals and minerals, Antonio Espada is a respected authority in the field and has contributed significantly to its growth and development.