Understanding the Mining Investment Life Cycle – The Lassonde Curve

The Lassonde Curve is a useful framework for understanding how value can be created, lost, and rediscovered throughout the life cycle of a mining project. It is especially relevant for investors looking at junior explorers, resource developers, and early-stage mining companies.

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Named after Pierre Lassonde, a prominent figure in the mining industry, the Lassonde Curve illustrates the typical relationship between time, risk, and value during a mining project's development.

The key stages of the Lassonde Curve

1. Concept / Pre-Discovery: This is the earliest and highest-risk phase. Geologists develop theories about potential mineral deposits based on preliminary data, mapping, sampling, and geological interpretation.
2. Discovery: As exploration progresses and promising drilling results emerge, investor interest can increase quickly. This is often where speculative value is created.
3. Feasibility Studies: After discovery, the project enters a more detailed analysis phase. This period can see interest fade as investors wait for studies, permits, funding plans, and development decisions.
4. Development and Construction: If the project remains viable, the company moves towards financing, construction, and operational preparation. Value may begin to rebuild as the market gains confidence in the project.
5. Production: This is when the mine becomes operational and begins generating revenue. At this stage, the project's potential is tested against real-world costs, output, commodity prices, and operational performance.

Why the Lassonde Curve matters for mining investors

Mining investments can move through very different phases. A junior explorer is not valued the same way as a producer, and a discovery-stage company carries very different risks compared with a company already generating cash flow.

For investors, the Lassonde Curve offers several useful insights:

• It helps investors understand potential entry and exit points across the mining project life cycle.
• It highlights why share prices can rise sharply after discovery, then drift during quieter study and funding periods.
• It shows the importance of key milestones such as drilling results, resource estimates, feasibility studies, permits, funding, and production updates.
• It demonstrates the high-risk, high-reward nature of early-stage mining and exploration companies.

Understanding the Lassonde Curve can help investors set more realistic expectations, manage risk, and identify where a company may sit in the broader mining investment cycle.

However, the curve is only a general framework. Individual projects can deviate from the pattern due to market conditions, commodity prices, funding availability, permitting delays, operational issues, or project-specific challenges.

Example: Pilbara Minerals (ASX: PLS)

Pilbara Minerals is a useful example of how a mining company can move through different stages of investor interest, from early exploration and development through to production and market recognition.

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Common mining investment terms

• Exploration: The process of searching for mineral deposits through surveys, sampling, mapping, and drilling.
• Discovery: The point at which a significant mineral deposit is found, often leading to increased investor interest.
• Resource Estimation: The process of estimating the size, grade, and quality of a mineral deposit.
• Preliminary Economic Assessment: An early-stage study that provides an initial view of a project's potential economics.
• Feasibility Study: A detailed technical and economic study assessing whether a project is commercially viable.
• Development: The stage where a company prepares for mine construction, including financing, permitting, and operational planning.
• Production: The phase where the mine is operating and generating revenue from mineral extraction.
• Depletion: The gradual reduction of the mineral resource as mining progresses.
• Orphan Period: A quieter period during feasibility or development when investor interest may fade due to limited news flow.
• Drill Core: A cylindrical rock sample collected through drilling and used to assess mineral content and geology.