Olivier Wibault - Manager David Jacquet - Technical Manager Eric Krolop - Report mining and drilling survey Olivier Gerling - Blasting report and firing equipment Jean Barany - Blasting report and firing equipment Xavier Genot - Monitoring and siting Jérôme Berger - Monitoring and siting assistant Albert Desbesselle - Monitoring and siting assistant Alain Meyers - Workshop and maintenance Marie-Cécile Delize - Managing assistant Véronique Vanlindt - Managing assistant Amélie Roland - Managing assistant