SuperCritical Materials Licenses Uranium Seawater Extraction Technology to Boost Domestic Nuclear Fuel Security

July 26, 2026

Nuclear Newswire United States

Overview

Nuclear fuel startup SuperCritical Materials has licensed a patented uranium and critical materials adsorbent manufacturing process from the Department of Energy, originally developed by Pacific Northwest National Laboratory (PNNL). This technology utilizes a durable, reusable polymer adsorbent to extract uranium from seawater at an industrial scale. The licensing is a significant step towards strengthening domestic nuclear fuel security and reducing foreign dependency.

In Depth

Key Findings

SuperCritical Materials, a nuclear fuel startup, has secured a license for a groundbreaking uranium and critical materials adsorbent manufacturing process from the U.S. Department of Energy (DOE), a technology originally developed by Pacific Northwest National Laboratory (PNNL). This patented process employs a durable and reusable polymer adsorbent, enabling the industrial-scale extraction of uranium from seawater. This strategic move is poised to significantly enhance domestic nuclear fuel security and reduce reliance on foreign sources.

Technical / Clinical Details

The licensed technology represents years of intensive research and development by PNNL. The core innovation lies in a specialized polymer adsorbent that can selectively and efficiently capture trace amounts of uranium present in seawater. A key advantage of this material is its superior durability and reusability compared to previous adsorbents, which translates into reduced operational costs for uranium extraction and enhanced commercial viability at a large scale. Beyond uranium, the technology holds potential for recovering other critical minerals, contributing to a diversified resource acquisition strategy. SuperCritical Materials aims to leverage this technology to establish new domestic uranium supply channels and improve the overall resilience of the nuclear fuel cycle.

Background & Context

As the role of nuclear power is re-evaluated globally, securing a stable supply of nuclear fuel has become a pressing concern for national energy security. Uranium resources are geographically concentrated, making supply vulnerable to geopolitical risks and market fluctuations. The U.S. government has been actively pursuing strategies to strengthen its domestic nuclear fuel supply chain and decrease foreign dependency, with this PNNL technology license being a critical component of that initiative. While seawater contains vast quantities of uranium, extracting it has historically faced significant technical and economic challenges. SuperCritical Materials’ entry and utilization of PNNL’s technology mark a potentially transformative step toward the commercialization of this extraction method.

Strategic Significance & Outlook

The commercialization of seawater uranium extraction technology by SuperCritical Materials has the potential to revolutionize the nuclear energy industry. Establishing a domestic uranium supply will bolster U.S. energy independence and contribute to the long-term stability of nuclear fuel supplies. In the future, this technology could be adopted by other nations, diversifying and stabilizing the global uranium supply. This advancement in materials science and engineering is seen as opening a new frontier in the sustainability and security of the nuclear fuel cycle.

Source: https://www.ans.org/news/article-8239/supercritical-materials-licenses-technology-for-uranium-seawater-extraction/

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