43. For the purposes of section 134 of the Act,
“experimental work” means all the work required within an experimental exploration project for surface mineral substances to assess the practicability of the project on a commercially profitable basis; (travaux d’expérimentation)
“technico-economic studies” means all the studies required to determine the economic viability of an exploration project for surface mineral substances including drilling programs and feasibility studies. (études technico-économiques)