DOE Boost Puts Arkansas DLE on the Brink

With DOE backing and Koch technology licensed, the Arkansas DLE project edges closer to a pivotal investment decision

24 Feb 2026

In southern Arkansas, beneath flat farmland and pine forest, lies brine rich in lithium. For years it has promised a domestic answer to America’s battery ambitions. Now the South West Arkansas project is edging towards a final investment decision (FID), a step that would shift it from promise to construction.

The venture, a joint effort between Standard Lithium and Equinor, has licensed Koch Technology Solutions’ “Li-Pro” direct lithium extraction (DLE) system. The technology has been piloted on the site’s brine. Yet commercial deployment still depends on clearing the usual hurdles: detailed engineering, permits and, above all, financing. For now the work is technical rather than physical, testing, design and integration planning, not bulldozers.

DLE is meant to improve on the old model of lithium extraction, which relies on vast evaporation ponds that can take months or years to concentrate the mineral. By contrast, DLE systems aim to pull lithium from brine more quickly, with higher recovery rates and a smaller surface footprint. The attraction is clear. So is the risk. Across the industry, many DLE processes have worked in pilots but faltered at sustained, large-scale output. An FID would signal confidence that this project can cross that gap.

Washington is keen for it to do so. The scheme has been selected for up to $225m in support from the Department of Energy. The award reflects a broader effort to reduce reliance on imported lithium and to secure supply chains for electric vehicles and grid storage. Federal backing lowers financial risk, but does not remove technical uncertainty.

Each partner brings something different. Standard Lithium offers experience in the region’s brine resources. Equinor contributes capital and large-project discipline, part of a wider shift by energy firms into critical minerals. Koch provides the process technology designed to separate lithium from other dissolved salts.

As America’s demand for batteries grows, so too does the pressure to produce materials at home. The Arkansas project is becoming a test case. If it reaches FID and then performs as hoped, it could hasten a new generation of DLE plants. If not, it will serve as a reminder that in mining, as in energy, laboratory promise is easier than commercial reality.