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The Bottom Line is the blog written by an experienced mining engineer and consultant with a 45 year career. Each blog post tackles topics that might matter to mining professionals and investors. The Bottom Line blog tries to deliver grounded insight from decades of personal experience. Whether you're a geologist or engineer, an analyst, or simply someone wanting commentary that gets straight to the point.
The Bottom Line blog site is hosted at https://kuchling.com/the-bottom-line/ and the entire library list can be found at https://kuchling.com/library/.
Shorter video summaries of selected blog posts can be found below. These have been auto-generated by AI (Google NotebookLM) and new video summaries will be added regularly. The videos tend to be a bit overly dramatic in tone.
KJK-How_to_Fake_a_Mine.mp4Junior Mining Shams and Scams
The junior mining industry has a long history of investor scams. They are still happening today. Here is a list of a few of them, summarizing the activities that raised the red flags and what happened.
KJK-The_Lassonde_Curve.mp4Mining's Lassonde Curve - A Wild Ride
When looking at the share price of a junior mining company, its life stage can be a factor. The Lassonde Curve describes the life of a junior miner and the pitfalls that management must try to address.
This is a longer form video (7 mins) compared to the other intro videos.
KJK-The_Anatomy_of_a_PEA.mp4The Anatomy of 43-101 Chapter 16 – Mining
Ever wonder what a mining engineer does or what effort it takes to write Chapter 16 (Mining) in a 43-101 report? Both questions are answered in this blog. Also learn why its a great career choice.
KJK_Assay_Transparency_Debate_Blog.mp4Beyond the Headline Grade: For or Against Assay Transparency?
Beyond the Headline Grade: For or Against Assay Transparency?
RAW ASSAY DATA: Few companies will provide raw assay data to the public. Should this become the norm for junior miners? This blog post examines both the pros and cons of doing this.
KJK-Builders_vs.mp4A Graveyard of Mining Studies: What Kills Mining Projects After the Numbers Check Out
A Graveyard of Mining Studies: What Kills Mining Projects After the Numbers Check Out
Stalled mining projects after completion of a "great" feasibility study can be caused by many reasons, and most likely for multiple reasons. Will the new ore body discoveries be hampered by those same roadblocks and, if so, how will we produce the much needed critical minerals in the future?
KJK-Fragility_of_Optimal_Mining.mp4Mining's Obsession with Optimization – Good or Bad?
Mining's Obsession with Optimization – Good or Bad?
Are we trying to over optimize versus simply making a project that functions?
KJK-Inferred_Resources.mp4The Double Life of Inferred Resources
The Double Life of Inferred Resources
Mining's open secret: a PEA mine plan can be built on resources too uncertain to finance a real mine. When feasibility arrives, the project may shrink, and investors wonder what happened. Blame it on the Inferred resources.
KJK-4_Mining_Study_Types.mp44 Mining Study Types (Desktop to Feasibility)
4 Mining Study Types (Desktop to Feasibility)
MINING STUDIES: Is your mining project ready for a PEA, a PFS, or a FS? What level of information should you have on hand for each of these studies? Check out one of our past blogs and get a data checklist to help you move forward along your path.
KJK-Evaluating_Junior_Miners.mp4Early Stage “What-if” Mine Economic Analysis – Its Valuable
Early Stage “What-if” Mine Economic Analysis – Its Valuable
EARLY STAGE MODELLING: How soon should you start modelling the economics of your mining project? I suggest you start as soon as you have some idea of what your project might look like. Also don’t start a PEA until you have completed some desktop financial models to give you a reasonable prediction for the PEA outcome.
To help with this analysis, check out the Cashflow Modler App.
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