Mr. Scott Taylor reports

LITHOS SECURES U.S. PATENT, PAVING THE WAY FOR COMPLETE LITHIUM REFINERY OPERATIONS WITH BROAD DIRECT LITHIUM EXTRACTION (DLE) CAPABILITIES

Lithos Group Ltd. has received its United States patent for the "Electro-Pressure Membrane Method for Recovery and Concentration of Lithium from Aqueous Sources," by the United States Patent and Trademark Office (USPTO). This patent secures Lithos's ability to operate across the full lithium extraction and refinement process, covering essential stages from pretreatment through lithium concentration to final processing for lithium carbonate (Li2CO3) or lithium hydroxide (LiOH) production. It safeguards Lithos's flexibility to integrate any direct lithium extraction (DLE) method, supporting an adaptable approach to refining.

The patent allowance protects all five steps in Lithos's lithium extraction and concentration process, marking a significant milestone for the company's intellectual property portfolio. This comprehensive protection enhances Lithos's capability to work with various DLE techniques, enabling seamless adaptation and integration with lithium carbonate or hydroxide production.

Scott Taylor, chief executive officer of Lithos, commented: "This foundational patent broadens our ability to offer fully integrated lithium extraction and refinement solutions, from pre-treatment to the final stage of producing battery-grade materials. It provides LiTHOS with a secure framework for commercializing our AcQUA and TiERRA technologies, and for partnering with other DLE innovators to meet growing lithium demands sustainably."

Broad patent coverage across all stages of lithium extraction and refinement

The patent's coverage across all five extraction stages enhances Lithos's flexibility to implement a full carbonate or hydroxide refinery and allows for integration with multiple DLE approaches. This adaptability is crucial for:

• Pretreatment: Lithos's AcQUA technology allows for the effective removal of impurities like magnesium, calcium and boron, preparing brine for optimal lithium recovery.
• Lithium concentration and refinement: The patent protects the electro-pressure membrane process that drives lithium concentration, laying the groundwork for efficient downstream conversion to high-purity lithium carbonate or lithium hydroxide.
• DLE integration: AcQUA can work with various DLE techniques, including absorption, solvent extraction and electrodialysis, giving Lithos and its partners the flexibility to adopt the most suitable extraction technology.
• Posttreatment and reinjection: TiERRA technology addresses the challenge of responsible brine management by conditioning spent brine for re-injection, reducing freshwater requirements and aligning with environmental best practices.

Strengthened IP enables market expansion and strategic partnerships

With this foundational patent, Lithos is positioned to accelerate commercial opportunities, offering:

• Strategic licensing and partnerships: The patent opens the door to new collaborations with lithium producers and refiners seeking flexible, scalable solutions for battery-grade lithium.
• Full operational control: Securing all steps in the lithium extraction process protects Lithos's ability to operate independently or with industry partners in both refining and DLE stages, a critical factor in meeting industry demands.

Validated technology and industry collaborations

• Technology validation with SQM: In collaboration with Sociedad Quimica y Minera de Chile (SQM), AcQUA demonstrated high-purity lithium recovery and the removal of challenging impurities, positioning it as a viable choice for major lithium producers.
• Partnerships with leading companies: Lithos is actively engaged with global firms in the specialty chemicals and mining sectors, where AcQUA and TiERRA technologies are being evaluated for large-scale applications.

Sustainable innovation in lithium extraction

Lithos's AcQUA technology combines an electro-pressure membrane process that concentrates lithium efficiently without requiring fresh water or harmful chemicals. TiERRA complements this by providing a closed-loop solution that reinjects conditioned brine, reducing the environmental impact and supporting long-term water conservation. Together, these technologies align with the industry's push for sustainable extraction and refining practices.

This patent solidifies Lithos's standing in the lithium sector by enabling a fully adaptable lithium refining model, setting the stage for further innovation and partnerships that support the industry's need for flexible, sustainable lithium solutions.

About Lithos Group Ltd.

Lithos Group is a mining technology company focused on selective extraction of aqueous minerals. The company's AcQUA technology allows lithium to be extracted from continental brine reservoirs without the need for additional freshwater or any added chemicals or reagents. Lithium is now among the world's most in-demand metals as the world electrifies to reduce carbon dioxide emissions, led by continuing growth in electric vehicle sales and the installation of hundreds of gigawatts of intermittent solar power generation capacity requiring partial battery storage solutions.

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