Recorded on July 9 2026 live at the 2026 Rule Symposium on Natural Resource Investing in Boca Raton Florida
Brent Cook, Founder and Senior Advisor at Exploration Insights, joins Andy Millette to explain what investors should examine before committing capital to junior mining and exploration companies. Cook discusses the outlook for gold, silver, and copper, including central bank gold demand and the long-term challenge of producing enough copper for emerging technologies. He breaks down how location, infrastructure, metallurgy, grade, tonnage, and development costs determine whether a mineral discovery can become an economic deposit. Cook argues that margin matters more than headline grade because rising metal prices can also bring higher operating and construction costs. He also explains why management strategy, future financing, and a clear value-creation plan are essential when evaluating junior explorers. The conversation examines the prospect-generator model and how partner-funded exploration can reduce dilution while maintaining exposure to discovery. Brent also discusses Exploration Insights and the importance of independent technical due diligence for resource investors.
Key topics
• Gold, silver, and copper market outlook
• Central bank gold buying and the dollar
• Copper supply versus future technology demand
• Infrastructure, metallurgy, grade, and tonnage
• Why margin matters more than headline grade
• Management strategy and future financing
• Prospect generators and partner-funded exploration
• Junior mining dilution and discovery economics
• Independent technical due diligence
Exploration Insights
Website https://explorationinsights.com/
Brent Cook profile https://explorationinsights.com/about/the-team/
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Host Andy Millette Natural Resource Stocks
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Chapters
00:00 Cold open 01:09 Brent Cook and the Rick Rule Symposium 01:55 Gold, silver, and copper outlook 03:25 What makes a mining project work 04:45 Grade versus margin 06:05 Evaluating junior mining management 07:25 The prospect-generator model 08:06 Prospect-generator examples 09:10 Exploration Insights and technical due diligence
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