Magna Terra Discovers Copper Mineralization and Completes Airborne Geophysical Survey at the Humber Copper-Cobalt Project in Newfoundland July 17, 2025 8:00 AM EDT | Source: Magna Terra Minerals Inc. Toronto, Ontario--(Newsfile Corp. - July 17, 2025) - Magna Terra Minerals Inc. (TSXV: MTT) ("Magna Terra" or the "Company") is pleased to announce that it has discovered copper mineralization during early- stage prospecting at its 40,675-hectare, 100% owned Humber Copper-Cobalt Project (the "Humber Project" or ...