Can the project clear the permits and funding test?

Lake submitted formal responses to Catamarca government observations on the Kachi Exploitation EIA, with public consultation underway from 3–31 August 2026. This advances the permit process but does not establish an approval date. No substantive mining production or development activity was reported in the June quarter.

Lake assessed Northern and Southern grid options alongside off-grid solar and battery storage. No binding tariff, connection date or construction allocation was disclosed, so the work preserves operating-cost and reliability options without changing the construction outlook.

30 June cash: A$6.67m, against approximately A$4.03m of quarterly relevant outgoings. After quarter-end, Lake completed the A$3.8m Acuity Capital ATM draw and raised a further A$1.1m on 11 August 2026. The proceeds support EIA, power optimisation and corporate activities rather than construction-scale expenditure. Funding for construction remains unresolved.

The released DFS Addendum defines Kachi Phase One as a 25ktpa battery-grade lithium carbonate operation over 25 years, supported by an 11.1Mt LCE resource, including 8.2Mt Measured and Indicated, and a 626,760t LCE reserve. The study specifies US$1.157bn capex, US$5,895/t run-rate opex, a 19.7% post-tax IRR and 4.5-year post-tax payback; approximately 98% of life-of-mine production derives from Measured Resources. The reserve and resource weighting provide a defined basis for assessing the project, but do not establish construction or operating performance.

Lilac’s Gen4 demonstration processed 5.2m litres of brine and produced 1,300kg of 99.5%-purity lithium carbonate, moving the flowsheet beyond laboratory-only work. The DFS is based on approximately 90% lifetime Gen4 recovery and 4,300-cycle media life, rather than Gen5’s targeted recovery above 95%. Sustained recovery, impurity control and media durability across variable Kachi brine remain to be demonstrated at commercial scale. Gen5 is bounded upside because the study case does not require its targeted recovery improvement.

Kachi requires approximately 57MW and a 270km grid interconnection, with grid, solar and battery alternatives still under evaluation. Utilities represent approximately 55% of disclosed opex, or about US$3,242/t, giving delivered power cost and reliability a direct effect on the operating case. Reliable uptime at DFS assumptions, alongside commercial-scale DLE performance, is required before construction execution can validate the case. Funding remains the separate development gate.

Public consultation on Lake’s Kachi Exploitation EIA runs from 3–31 August 2026, with a DIA expected by 30 September, subject to Catamarca’s review.

1. 01An on-time, supportive DIA would reduce permitting uncertainty and increase the probability assigned to construction, but would not establish FID or remove financing risk.
2. 02Delay, adverse conditions or a materially qualified outcome would leave the 25ktpa Phase One case at the study stage for longer.

The higher-value catalyst is a linked package combining the DIA with binding project debt, strategic or joint-venture equity, offtake prepayment or a power structure.

1. 01These terms would demonstrate that Kachi’s US$1.16bn Phase One case can attract external capital and support construction.
2. 02An offtake or partner announcement without executable funding terms would improve commercial credibility, but provide less valuation credit than committed capital and defined ownership.

FID, a defined EPC scope and commissioning would replace study assumptions with an approved budget, schedule and ownership structure; first production remains the next-gate outcome.

1. 01The modeled 2028 positive FCF year is therefore a later confirmation, not an immediate catalyst, while expansion remains optional until Phase One operates.

Positive real rates and elevated yields favour funded developers over juniors seeking construction capital. US Fed funds were 3.50%-3.75% on 18 March 2026. This makes binding partner, offtake or project-debt terms more informative than another study update when assessing access to construction capital.

The April 2026 China lithium benchmark was up 117.25% year on year, but the supplied data contains no current global battery-grade carbonate price in US$/t, inventory series, quantified new-supply forecast or surplus/deficit outlook. EV and stationary-storage demand support lithium’s long-term role, but issuer commentary is not an independent forecast; a short-lived rebound cannot establish tighter market conditions or lender support.

Kachi’s DFS uses an average lithium carbonate price of approximately US$20,500/t over its 25-year mine life. Financeability will be tested against that deck, power costs and debt-service capacity, making capital terms the relevant transmission channel from study economics to equity value. Higher lithium prices without credible contracting, power and debt terms do not resolve the funding discount. The macro backdrop therefore raises the value of financing evidence rather than changing the asset case.