Standard Lithium Ltd.’s SEC filings document the disclosures of a Canadian foreign private issuer developing U.S. lithium brine assets. The company’s Form 6-K reports include press releases, material change reports, and exhibits covering quarterly and annual results, the South West Arkansas Project, East Texas properties, the Arkansas demonstration plant, direct lithium extraction operations, and Smackover Lithium joint venture agreements.
Filings also disclose capital-structure activity, including common share issuances under the at-the-market equity program, incorporation by reference into Form F-10EF and Form S-8 registration statements, project finance updates, offtake documentation, and formal reporting status as a Form 40-F filer.
Standard Lithium Ltd. disclosed a preliminary economic assessment for its Franklin lithium-brine project in East Texas, modeling approximately 70,000 tonnes per year of battery-quality lithium carbonate during the first eight years of a 20-year project life. Estimated life-of-project output is approximately 1.29 million tonnes, averaging approximately 64,600 tonnes annually. The plan uses 36 horizontal production wells and 36 horizontal injection wells; Standard Lithium’s economic interest is 55%.
Financial results are on a 100% project basis. The lithium-only case estimates initial capital of $3,496 million and average operating costs of $4,226 per tonne. Its after-tax NPV at an 8% discount rate is $4,992 million, with a 24.0% after-tax IRR and a 3.1-year payback from the start of operations.
The optional bromine case models approximately 50,000 tonnes per year and would add $407 million to initial capital; its after-tax NPV at 8% is $5,560 million. The PEA is preliminary, includes inferred resources considered too speculative for reserve classification, and states there is no certainty it will be realized.
Standard Lithium Ltd. (SLI), in partnership with Equinor, announced that the Preliminary Economic Assessment (PEA) for the Franklin Project in East Texas has been filed on SEDAR+. The PEA models up to 70,000 tonnes of battery-quality lithium carbonate annually and 1.29 million tonnes total over a 20-year modelled operating life. Initial production could begin in the early 2030s.
On a 100% ownership basis, with no financing assumptions, the PEA estimates unlevered pre-tax NPV8 of $5.9 billion, an IRR of 25.7%, and a 3-year payback period. It estimates average annual lithium cash operating cost of $4,226/t and capital intensity of $49,945/t; Standard Lithium’s economic interest is 55%. The PEA recommends advancing to a Preliminary Feasibility Study, with completion targeted for 2027. The release cautions that PEA results may not be realized.
Standard Lithium Ltd. (SLI), through its Smackover Lithium partnership, amended its binding offtake agreement with Trafigura Trading LLC for the South West Arkansas Project. Smackover Lithium may elect to supply up to an additional 4,000 metric tonnes of battery-quality lithium carbonate per year under the 10-year agreement, beginning at commercial production. Including the initial 8,000 metric tonnes per year, the maximum possible Trafigura take-or-pay volume is 12,000 metric tonnes per year. Together with the LG Energy Solution agreement for 8,000 metric tonnes per year, total possible commitments are 20,000 metric tonnes per year, against an initial target of 18,000 tonnes, roughly 80% of the project's 22,500 tonnes of annual nameplate capacity.
Smackover Lithium says its offtake commitments are sufficient to focus on finalizing debt financing; due diligence and customary processes are underway with three major Export Credit Agencies. It targets a senior secured, limited recourse package of around $1.1 billion, a Final Investment Decision later this year and first commercial production in 2029.
Standard Lithium appointed Ralph Alexander as an independent director, effective immediately, and granted him 300,000 incentive stock options. They vested immediately and are exercisable for 60 months at a price equivalent to the U.S. dollar closing price on the NYSE American on the grant date.
Standard Lithium Ltd. appointed Ralph Alexander as an independent member of its Board of Directors, effective immediately. Alexander served as Chief Executive Officer of Talen Energy Corporation from 2016 to 2021 and as its Chairman through 2023; he was a Managing Director and Partner at Riverstone Holdings LLC from 2007 to 2016 and held roles at BP for nearly 25 years.
In connection with the appointment, the company will grant Alexander 300,000 incentive stock options. The options will vest immediately and be exercisable for 60 months at a price equivalent to the US dollar closing price on NYSE American on the date of grant. Alexander also serves as an independent director of NET Power Inc. and as a director of SHINE Technologies.
Standard Lithium Ltd. (SLI) issued 107,631 common shares under its at-the-market equity program during the quarterly period ended September 30, 2026, at an average price of US$2.78, generating gross proceeds of US$299,569. The shares were issued on NYSE American LLC, and the company paid US$7,495 in commissions and fees to the program’s agents, Canaccord Genuity and Evercore ISI.
Launched August 8, 2025, the program allows the company to issue and sell common shares from treasury to the public at its discretion from time to time.
Standard Lithium said the Smackover Lithium partnership with Equinor amended its binding commercial offtake agreement with Trafigura. Smackover Lithium may elect to supply up to an additional 4,000 metric tonnes of battery-quality lithium carbonate per year, on top of the initial 8,000 metric tonnes; maximum possible Trafigura deliveries on a take-or-pay basis are now 12,000 metric tonnes per year under the 10-year agreement beginning at commercial production.
Alongside a binding take-or-pay agreement with LG Energy Solution for 8,000 metric tonnes per year, total possible offtake commitments have reached 20,000 metric tonnes per year, above the initial target of roughly 80% (18,000 tonnes) of the project’s 22,500-tonne annual nameplate capacity. Due diligence and customary financing processes are underway with three major Export Credit Agencies. The project targets around $1.1 billion in senior secured, limited recourse debt financing, a Final Investment Decision later this year, and first commercial production in 2029.
Standard Lithium Ltd. (SLI) reports a board change, with director Karen Narwold resigning from the Board of Directors effective September 15, 2026 after accepting a new executive position with increased time commitments. Following her resignation, the Board will consist of eight directors.
The company has begun a search for a new independent director intended to complement the Board’s existing experience and expertise and to support Standard Lithium’s growth and strategic objectives. A further announcement is expected once this process concludes. The company also reiterates typical cautionary language regarding forward-looking statements.
Standard Lithium Ltd. (SLI) reported a governance update, announcing that director Karen Narwold will resign from its Board of Directors effective September 15, 2026 after accepting a new executive role. Following her departure, the Board will comprise eight directors.
The company has started a search for a new independent director aimed at complementing the Board’s existing experience and supporting its growth and strategic objectives across its lithium-brine projects in Arkansas and Texas.
STANDARD LITHIUM LTD. (SLI), through its Smackover Lithium partnership with Equinor subsidiaries, reports a second binding take-or-pay commercial offtake agreement for its South West Arkansas Project with LG Energy Solution. The Project will supply 8,000 metric tonnes per year of battery-quality lithium carbonate to LG Energy Solution over a 10-year period following the start of commercial production.
The Project’s initial phase is designed for 22,500 metric tonnes per year of nameplate lithium carbonate capacity and is seeking offtake agreements for roughly 80% of that volume. Combined with a previously announced Trafigura agreement for another 8,000 metric tonnes per year over 10 years, roughly 90% of the total targeted offtake volume is now committed.
The partnership previously reported indications of interest from three major Export Credit Agencies for over $1 billion in potential project debt. It is targeting a Final Investment Decision in 2026, with construction planned to begin promptly afterward and first commercial production of battery-quality lithium carbonate expected in 2029.
Standard Lithium Ltd. (SLI), through its 55%-owned Smackover Lithium partnership with Equinor, released a positive Preliminary Economic Assessment for the Franklin lithium brine project in East Texas. The PEA outlines an unlevered after-tax NPV8 of $5.0 billion, an after-tax IRR of 24.0% and a 3.1-year after-tax payback, based on a lithium carbonate price of $22,400/t.
The study contemplates annual production capacity of up to 70,000 tpa of battery-quality lithium carbonate, averaging about 65,000 tpa over a 20‑year life, supported by an initial CAPEX of $3.5 billion (capital intensity about $49,900/t). Average cash operating costs are estimated at $4,226/t, with all‑in costs of $5,054/t. The updated Mineral Resource includes 1.77 million tonnes LCE Indicated and 2.13 million tonnes LCE Inferred, plus significant bromide and potash resources, over 44,541 hectares of project area.
The PEA is preliminary and incorporates both Indicated and Inferred resources, which the company states are too speculative at this stage to be classified as Mineral Reserves, and it notes results are highly sensitive to lithium prices and the production schedule. The partnership plans to advance Franklin to a Preliminary Feasibility Study targeted for completion in 2027.