Palmer is a volcanogenic massive sulphide-sulphate joint venture project between Constantine and Dowa Metals and Mining, Constantine owns 51% of the project and is its operator.
The punishment from the OSC is a response to false accounting from Katanga that saw it overstate how much it mined in the Democratic Republic of Congo in 2014.
The Vancouver-based miner consolidated a land position of over 90 square kilometres in the Babine copper-gold porphyry district in central British Columbia.