South West Arkansas Project Feasibility Study: $1.70B NPV, 20% IRR
Standard Lithium Ltd.'s South West Arkansas Project in USA - Arkansas has a Feasibility Study outlining a pre-tax NPV of $1.70B, a pre-tax IRR of 20%, and initial capital of $1.45B. The mine plan runs 20 years at about 22500 TPA Li2CO3 per year.
Standard Lithium Ltd.'s South West Arkansas Project has reported Feasibility Study results for the lithium project in USA - Arkansas. The study headlines a pre-tax net present value of $1.70B. It reflects Standard Lithium Ltd.'s (SLI.V) latest disclosed economics for the asset.
Economics. The pre-tax NPV is $1.70B. Pre-tax IRR is 20%. Initial capital expenditure is estimated at $1.45B. Economics are based on $22,400/t lithium price based on average of Fastmarket's 20-year forward pricing curve.
Production and mine plan. Life of mine is 20 years. Average annual production is approximately 22500 TPA Li2CO3. Average head grade is 549 mg/L initial grade at start of production; 481 mg/L average grade over plant operating life.
Resources and ownership. The company holds a 55% interest in the project.
These figures are extracted from Standard Lithium Ltd.'s technical disclosures and reflect the most recent Feasibility Study on file. Compare this project against other developers and producers in our project economics database, and always verify the numbers against the original technical report before making any investment decision.
Reserves & Resources
| Category | Tonnage | Grade | Contained |
|---|---|---|---|
| Measured | — | — | 922kt LCE |
| Indicated | — | — | 255kt LCE |
| Inferred | — | — | 278kt LCE |
| Total Measured & Indicated | — | 442 mg/L avg concentration on M&I | 1.2Mt LCE |
Our Analysis
- IRR pre-tax
- 20%
higher than 17% of 18 projects we track
- NPV pre-tax
- $1.70B
higher than 43% of 21 projects we track
- Initial capex
- $1.45B
85% of NPV
costlier than 90% of 21 projects we track
- Mine life
- 20yrs
- Study price assumption
- $22,400/t lithium price based on average of Fastmarket's 20-year forward pricing curve
The arithmetic here is unforgiving. This project carries a $1.45B initial capex bill against a company worth roughly $622M, meaning the build cost runs about 2.3x the entire equity value. That is not a funding gap a small-cap closes with operating cash flow or a modest equity raise. The realistic cheque writers are strategic partners, off-takers with balance sheets, or a consortium willing to take construction risk in exchange for meaningful ownership. Whatever the structure, existing holders should expect substantial dilution or a negotiated sale of a large stake; the project economics are the supporting argument for that negotiation, not the deciding factor.
The returns themselves justify a hard look rather than enthusiasm. The 20% pre-tax IRR ranks in the bottom quartile of the 18 lithium projects tracked, and the $1.70B pre-tax NPV, while about 2.7x the company's market cap, is a figure the market may discount heavily given the financing overhang. That NPV-to-cap gap cuts both ways: it can signal an asset the market has not priced, or it can reflect skepticism that a company this size can fund a build worth 2.3x its own value without destroying per-share economics. The feasibility-level study, with its typical plus or minus 15% band, lends credibility to the numbers, and the 20-year mine life in Arkansas is a genuine jurisdictional plus. But the study's $22,400/t lithium price assumption, drawn from a 20-year forward curve, carries its own sensitivity risk if that curve proves optimistic.
Capital intensity at 85% of NPV is moderate by lithium standards, yet that framing misses the point: the constraint is not the ratio to NPV but the ratio to equity. This is one of two projects the company tracks, so there is no second asset to pledge as collateral or sell to fund this one. The single question that decides the outcome is whether a partner or lender emerges willing to write a cheque roughly two and a half times what the entire company is worth, and at what price for existing shareholders.
Our take, benchmarked against the project economics in the Mining Stocks database. Figures are estimates drawn from company technical reports — not investment advice; always verify against the source filing.