Dr. Enrique Jélvez, researcher at the Delphos Laboratory and the Advanced Mining Technology Center (AMTC), was invited to make a short stay of collaboration at the Faculty of Mines - Medellin Headquarters, of the National University of Colombia (UNAL in Spanish), for two weeks, between November 18th and 29th, 2019. The invitation was made by Dr. Giovanni Franco, professor in the Department of Materials and Minerals.

The purpose of the stay was to collaborate in postgraduate teaching and explore lines of collaboration in research such as stochastic mine planning and incorporation of environmental issues into planning decision-making. At the end of the first week of his stay, Dr. Jélvez presented an open seminar to the UNAL community on the lines of research developed by the AMTC and, in particular, the work of the Delphos Planning Laboratory.

Below are some images of the activities carried out at the National University of Colombia:

Dr. Enrique Jélvez introducing AMTC and Delphos lab.	Dr. Enrique Jélvez presenting the lines of research in planning.
UNAL students attending the conference.	UNAL lecturers and researchers attending the conference.