During the second semester of 2016, Armando Valenzuela gave the course "Commercialization and Marketing in Mining" to 5th year students of the Civil Engineering in Mining and Metallurgy of Universidad Andrés Bello (UNAB), Santiago.

During the second semester of 2016, Armando Valenzuela gave the course "Commercialization and Marketing in Mining" to 5th year students of the Civil Engineering in Mining and Metallurgy of Universidad Andrés Bello (UNAB), Santiago.