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Alejandro Exss

Strategic Projects & Commercial Operations Engineer

Industrial Engineer with a Major in Mining Engineering from the Pontifical Catholic University of Chile.

He began his professional career as a Consultant in the business intelligence company, CRU, specializing in the copper and iron ore markets.

In August 2018, he joined the Minera Tres Valles team as a Junior Mining Engineer, one year later being promoted to Strategic Projects and Commercial Operations Engineer. He is fundamental to managing the financial model as well as playing a key role in the evaluation of the company's strategic projects.

Under the supervision of the VP of Commercial & Corporate Affairs, he is responsible for the logistics operations of cathode sales. He also holds a direct line of communication with suppliers and generates the company’s weekly payments.



Luis Vega Muñoz

CEO of Minera Tres Valles, has 23 years of professional experience in a variety of productive sectors, among them are mining, the distribution of petroleum, products, retail and defense.
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Rafael Pérez de Arce

VP of Corporate Relations at Tres Valles, holds more than 30 years of experience in the mining sector, leading him to be widely knowledgeable in terms of quality and efficiency in the field of project execution.
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Joe Phillips​

Joe Phillips is the COO of Minera Tres Valles.
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