How I Actually Value Lithium Americas Using the Cedar Creek Deposit Metrics
Most retail investors look at Lithium Americas (LAC) and see a stock that went from three dollars to six and back down to four, with no clear reason why. The price action is noise. The actual story lives in the geology, the processing numbers, and how those numbers translate to cash flow per ton. I've spent years running models on projects like this, and the mistake everyone makes is starting with the wrong metric. The Cedar Creek deposit at Thacker Pass is the engine behind the whole valuation. Not the whole project, just that one geological unit. Everything else is infrastructure built to get ore out of it.
Uncovering The Secrets Of Lithium Americas Corps Cedar Ratio A Key To Unlocking Its Valuation
There is no formal "Cedar Ratio" in any textbook. What I mean by that term is the specific relationship between the lithium grade in the Cedar Creek zone and the strip ratio required to mine it, expressed as a unit cost figure. It is the single most important number for figuring out whether this project makes money at a given lithium price. Here is the calculation. You take the proven and probable reserve tonnage from Cedar Creek, divide it by the annual production guidance from the prefeasibility study, and you get your mine life. Then you layer on the ore grade, the expected recovery rate, and the strip ratio to arrive at a produced cost per ton of lithium carbonate equivalent. That's the Cedar Ratio in practice. Thacker Pass sits at roughly 1.3% Li2O in the pegmatite zones, which is mid-range for hard-rock lithium. The strip ratio hovers around 3.5 to 4.5 tonnes of waste per tonne of ore depending on the mining phase. Recovery rates in the process plant are projected in the 70 to 80 percent range. When you run those numbers through a cost model, the produced cost comes out somewhere in the low to mid teens per ton of LCE. That is competitive. It is not obviously profitable at every lithium price, which is why the stock moves the way it does.
I remember a specific case where a portfolio manager asked me to value LAC using only the headline reserve numbers from the S-K 1300 filing. The problem was that the filing reported the Cedar Creek resource under one estimation methodology and the processed Reserve figure under another, with different confidence levels and different dilution assumptions baked in. If you treat them as interchangeable you end up overstating the recoverable lithium by maybe 12 to 15 percent. The workaround was straightforward: I pulled the JORC-compliant inferred and indicated resources, applied a recovery factor based on the pilot plant results, and compared that to the SAIJ-reported proven and probable reserves. The gap between those two numbers told me exactly how much optimism was priced into the reserve estimate. That gap became my sensitivity toggle in the model. Here is what most people miss about hard-rock lithium valuation. Grade is not the dominant cost driver. Recovery rate is. A deposit with 1.1% Li2O and an 85 percent recovery rate can produce lithium cheaper than a 1.4% deposit running at 68 percent recovery. The math is simple. Lower recovery means you process more ore to get the same output, which means higher mining costs per ton of product, higher energy costs, higher reagent consumption, and bigger tailings. Everyone looks at grade first. They should be looking at recovery first. Another counter-intuitive point: the strip ratio matters less than the mining sequence. At Thacker Pass, the early phase mining exposes higher-grade ore closer to the surface. The later phases require moving more waste to reach the deeper pegmatite. Your unit cost curve is not flat. It steps up over time. A DCF model that assumes constant production costs is lying to you. I build a phased cost profile that reflects the actual mining plan, and it changes the NPV by roughly 20 to 30 percent compared to a flat assumption. That difference is the difference between a buy and a hold for most investors.
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The Cedar Creek numbers also interact with something nobody talks about: cyanide destruction costs. Thacker Pass uses a cyanide leach circuit for ore that is refractory to standard flotation. The processing plant includes a SO2/Air cyanide destruction system, and that system is a capex and opex line item that grows with throughput. When lithium prices drop and the plant runs below design capacity, the per-ton cyanide destruction cost goes up disproportionately. I have seen models that ignore this and come out looking fine until you stress-test production at 70 percent capacity, at which point the unit cost spikes by maybe 15 to 20 percent. That spike matters more than most people think. So here is how you actually use this. Pull the latest technical report for Thacker Pass. Look at the Cedar Creek reserve statement. Note the grade, the tonnes, and the strip ratio. Check the processing plant recovery assumption and the base-case produced cost. Run three scenarios: one where recovery hits the high end of the piloted range, one where it hits the low end, and one where the strip ratio worsens by half a tonne per tonne of ore. The range between those three outcomes is your real valuation window. Everything between them is guesswork dressed up as analysis. I used to spend about four hours building a fresh valuation model for LAC from scratch. Now I have a template that pulls the key parameters directly from the technical reports and auto-calculates the Cedar Ratio for each phase. It cuts the build time down to about 45 minutes. The savings are not dramatic, but the consistency is. You stop making the same spreadsheet errors twice.
The biggest limitation of this approach is that it only tells you about the geological and mining economics. It does not tell you anything about permitting risk, community opposition, water rights, or the chance that the Department of the Interior changes the lease terms. Thacker Pass sits on federal land with a complex history of objections and legal challenges. Those factors can kill a project that looks great on paper. I do not adjust the Cedar Ratio for that. I just flag it separately and let you decide how much weight to give it. Some investors discount the entire NPV by 30 to 40 percent for regulatory risk. Others ignore it. Both positions are defensible. Neither is objectively correct. If you want an alternative to this method, you can use a relative valuation approach and compare LAC to Allkem, Arcadium Lithium, or Ganfeng on a price-to-reserves basis. It is faster but less informative. Relative multiples collapse when you have a project like Thacker Pass that has unique geography, unique processing requirements, and unique permitting status. Those characteristics make it not comparable to anyone else in the space. The Cedar Ratio is not a magic number. It is a lens. It focuses your attention on what actually drives value in a hard-rock lithium project. The rest is noise.
