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Key Staff


Adam Johnston, Chief Metallurgist

Fellow AusIMM, Chartered Professional (Metallurgy)
Over 20 years experience in extractive metallurgy.
Worked on testing, design, construction, commissioning and operation of a wide variety of processes on six continents.
Luis Miguel La Torre, Principal Metallurgist

12 years experience in extractive metallurgy.
Lead major improvements in metallurgy and throughput on several operations in South and Central America. Expert in comminution design.
Cesar Fuentes, Senior Metallurgist

10 years experience in extractive metallurgy worked on several major testwork programs for copper, gold and silver projects.
Leads simulation software sales, gas dispertion studies training and consulting for Transmin.
Belenia Medina, Metallurgist

Belenia is a chemical engineer and has a PhD in froth flotation. Specialist in development of conceptual engineering studies for manganese and copper.
Leslie Lopez, Geometallurgist

Leslie is a chemical engineer with a Masters in Extractive Metallurgy. Experience in iron ore beneficiation. Expertise in geometallurgical modelling.
Mayra Jefferson, Metallurgist

Mayra is a chemical engineer with a Masters in Extractive Metallurgy from the Western Australian School of Mines. Experience in simulation, design and testwork supervision in a range of metals.
Jose Salvador, Metallurgist

Jose is a metallurgical engineer. Experienced in preparation of engineering documents, material balances.
John Ramirez, Metallurgist

John is a metallurgical engineer that has worked in testwork laboratories and major copper flotation operations prior to joining Transmin.
Jack Quispe, Metallurgist

Jack is a metallurgical engineer, that has worked in metallurgical laboratories, assay laboratories,and copper-gold flotation operations prior to joining Transmin.
Javier Velasquez, Data Scientist

Javier studied scientific computing and has done research in machine learning. Javier supports Transmin's metallurgical team with the latest in machine learning and artificial intelligence.