Hayden Locke, CEO of Marimaca Copper, joins Merlin Marr-Johnson for a discussion on how long it takes to build a copper mine post-discovery. Chapeau to Ivanhoe Mines and the great Kamoa-Kakula developed in a mere 14 years, with longer timelines much more common. Factors such as capex, infrastructure, complexity, and margin are covered. Hayden touches on the differences between how a major or a mid-tier company might approach a development decision.