South West Arkansas (SWA) Project Feasibility Study: $1.70B NPV, 20% IRR
Standard Lithium Ltd.'s South West Arkansas (SWA) Project in Arkansas, United States 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 lithium carbonate per year.
Standard Lithium Ltd.'s South West Arkansas (SWA) Project has reported Feasibility Study results for the lithium (lithium carbonate) project in Arkansas, United States. 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. All-in sustaining costs are pegged at 4516 USD/t. Economics are based on Assumes $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 lithium carbonate. Average head grade is 549 mg/L Li 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 | — | 442 mg/L Li (average lithium concentration on Measured & Indicated Resource) | 922kt LCE |
| Indicated | — | 442 mg/L Li (average lithium concentration on Measured & Indicated Resource) | 255kt LCE |
| Measured & Indicated | — | 442 mg/L Li | 1.2Mt LCE |
| Inferred | — | — | 278kt LCE |
Our Analysis
- IRR pre-tax
- 20%
higher than 19% of 369 projects we track
- NPV pre-tax
- $1.70B
higher than 77% of 512 projects we track
- Initial capex
- $1.45B
85% of NPV
costlier than 87% of 481 projects we track
- Mine life
- 20yrs
- Discount rate
- 8%
- Study price assumption
- Assumes $22,400/t lithium price based on average of Fastmarket's 20-year forward pricing curve
A US$1.45 billion build against a US$479 million market capitalisation is the fact that governs everything else here. The company cannot fund this from its own balance sheet, and it cannot raise it quietly: the capex is roughly three times what the entire equity is worth. Whoever writes that cheque, whether a strategic partner, a streaming or offtake counterparty, a government-linked lender, or a consortium of banks, will extract terms. For existing holders the realistic outcomes are heavy dilution, a farm-down that surrenders a large share of the asset, or a slower staged build. The feasibility study's numbers do not change that arithmetic.
Those numbers are, on their face, respectable. A pre-tax NPV of US$1.70 billion ranks above 77% of the 512 projects we track, and a 20-year life in Arkansas gives the asset a jurisdiction profile that most lithium developers would envy. The pre-tax IRR of 20% ranks above only 19% of the 369 projects we track, which places it in the bottom quartile of that peer set. Against the roughly 15% after-tax return developers typically need to attract project finance, a 20% pre-tax figure leaves a thinner cushion than the NPV headline suggests, and the gap between a strong NPV rank and a weak IRR rank is the signature of a capital-hungry project: the value is real, but it is back-loaded behind a very large upfront cheque.
The study is feasibility-level, so these estimates carry more weight than a scoping exercise would, and the returns rest on a US$22,400/t lithium carbonate assumption taken from a 20-year forward curve. That is a long-dated input, and the sensitivity that matters is straightforward: the NPV and the IRR move together with it, and a lower realised price erodes the cushion above the financing hurdle well before it threatens the project's viability. The question that decides this investment is not whether the orebody works. It is whether the company can get US$1.45 billion committed on terms that leave anything on the table for the shareholders who own it today.
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.
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