The $1 Billion Water Company Taking Aim at America's Lithium & Critical Mineral Supply Chain

Highlights

• Gradiant's spinoff Alkali extracts lithium from oil and gas produced water, bypassing traditional mining and evaporation pond methods.
• CEO Anurag Bajpayee, an MIT-trained engineer, built Gradiant into a $1 billion water technology company with global deployment experience.
• The approach leverages existing oilfield infrastructure to reduce permitting hurdles and accelerate commercialization of domestic lithium supply.
• Commercial-scale economics remain unproven, and lithium concentrations vary by basin, posing key challenges for the direct lithium extraction model.
• The strategy signals a broader shift: future critical mineral supply chains may rely on chemistry and industrial innovation as much as new mines.

Gradiant and its lithium-focused spinoff Alkali are advancing a potentially disruptive vision for U.S. critical mineral supply chains: producing battery-grade lithium from oilfield wastewater rather than developing new mines. Led by MIT-trained engineer and entrepreneur Anurag Bajpayee, (opens in a new tab) the company argues that lithium extraction is fundamentally a water treatment challenge, an area where Gradiant has spent more than a decade building expertise. If successful, the model could dramatically shorten project timelines, reduce environmental impacts, and help strengthen domestic lithium supply.

Turning Waste Into Strategic Supply

What if America's next lithium mine is already operating? That is effectively the premise behind Gradiant and Alkali. Instead of pursuing conventional hard-rock mines or massive evaporation ponds, the company extracts lithium from produced water generated by oil and gas operations. The approach leverages existing infrastructure, existing wells, and existing wastewater streams. The attraction is obvious: fewer permitting hurdles, lower land requirements, and potentially much faster commercialization.

The Engineer Behind the Vision

CEO and co-founder Anurag Bajpayee launched Gradiant from research conducted at the Massachusetts Institute of Technology (MIT). Under his leadership, the company has grown into a water technology enterprise reportedly valued at approximately $1 billion, attracting substantial institutional capital while deploying advanced water treatment systems globally.

That experience may provide an important competitive advantage. Direct lithium extraction (DLE) is ultimately a chemical processing challenge, and Gradiant's core expertise lies in precisely that domain.

Where Opportunity Meets Reality

The opportunity is significant. America needs domestic lithium supply. Produced water is abundant. Existing infrastructure can accelerate deployment. Yet challenges remain. Commercial-scale economics must still be proven. Lithium concentrations vary by basin. Competition across the DLE sector is intense. Battery manufacturers require consistent, high-purity output. And while avoiding mine permits is attractive, scaling processing facilities remains capital intensive.

The REEx Take

What's notable is not simply lithium production. It is the broader lesson for critical minerals. The next generation of supply chains may come as much from chemistry, water treatment, recycling, and industrial innovation as from new mines. In Great Powers Era 2.0, the winners may be those who learn how to extract strategic minerals from the waste streams others overlook.

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