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Rock Tech Lithium Inc, Günter Papenburg AG and Knauf Gips KG establish German Lithium Institute to promote interdisciplinary circular economy for lithium in Germany

Rock Tech Lithium Inc. (the "Company" or "Rock Tech") (TSXV: RCK) (OTCQX: RCKTF) (FWB: RJIB) (WKN: A1XF0V).

Rock Tech Lithium Inc., together with GP Papenburg Entsorgung Ost GmbH and Knauf KG, have founded the Institute for Technologies and Economics of Lithium ("ITEL"). The ITEL is managed as a registered limited liability company by Professors Ulrich Blum and Ralf B. Wehrspohn of Martin Luther University Halle-Wittenberg as managing directors.

The ITEL is located in Halle an der Saale in Saxony-Anhalt. The institute aims to shape the interdisciplinary, CO2-neutral recycling economy for lithium in Germany . The switch to electromobility will make Germany the central location for battery production in Europe and thus also for the production of the crucial precursor lithium hydroxide. The reduction and reuse of the by-products generated during the refinement of lithium is the focus of the institute's work. Another focus is research into new production steps to optimize by-product value creation.

Dirk Harbecke CEO and Chairman of Rock Tech Lithium: "We at Rock Tech Lithium have already piloted a new refining process. Our nitrate process, produces very interesting by-products for the gypsum industry. With this institute we want to think further in this direction and it is part of our plan to become the first closed-loop lithium company in the world. In this context, the institute is a central building block in our sustainability strategy, which is not only about recycling our end product, but also about recycling all the materials that arise on the way to lithium hydroxide and setting up our production process in such a way that by-products of the highest possible reusability are generated in the process."

"In times of dwindling resources, greater sensitivity to the issue of recycling is essential. Here, the aspect of resource economics is gaining in importance, especially the optimal reuse of by-products," said Prof. Dr. Dr. h.c. Ulrich Blum of Martin Luther University Halle-Wittenberg.

"The institute has a unique selling point in the German research landscape: a corresponding facility currently exists neither close to science nor as a cooperative project of industry. From our point of view, the cooperation promises high chances for a technological lead in Germany ," concludes Prof. Dr. Ralf B. Wehrspohn from Martin Luther University Halle-Wittenberg.

The institute consists of three departments: In addition to the "Material Economics" department, which is primarily dedicated to byproduct value creation, the "Green Hydrogen" department is working on CO2-neutral production, and the "Recycling and Resources" department is working on optimizing refinery processes.

About Rock Tech Lithium Inc.

Rock Tech Lithium is a cleantech company with operations in Canada and Germany that aims to supply the automotive industry with high quality lithium hydroxide "made in Germany ". As early as 2024, the company intends to commission Europe's first lithium converter with a production capacity of 24,000 tonnes per year. This is equivalent to the volume needed to equip around 500,000 electric cars with lithium-ion batteries.

The cleantech company has set itself the goal of creating the world's first closed loop for lithium, thus closing the raw material gap on the road to clean mobility. Rock Tech owns the Georgia Lake lithium project in Ontario, Canada and, as early as 2030, around 50 percent of the raw materials used are expected to come from the recycling of batteries.

Rock Tech Lithium is listed on the TSX Venture and Frankfurt stock exchanges. The company is led by Dirk Harbecke , Chairman & CEO, Stefan Krause , Chief Financial Officer, and Don Stevens , Chief Technology Officer and Esther Bahne as Chief Strategy & Marketing Officer.

Rock Tech Lithium - The super fuel for the battery age

www.rocktechlithium.com

On behalf of the Board of Directors,

Dirk Harbecke
Chairman and Chief Executive Officer

Cautionary Note Concerning Forward-Looking Information

The following cautionary statements are in addition to all other cautionary statements and disclaimers contained elsewhere in, or referenced by, this news release. Certain information set forth in this news release contains "forward-looking information" within the meaning of applicable Canadian securities laws. All statements other than statements of historical facts included in this news release, including those regarding Rock Tech's opinions, beliefs and expectations, business strategy, development and exploration opportunities and projects, mineral resource estimates, drilling and modeling plans, and plans and objectives of management for operations and properties constitute forward-looking information. Generally, forward-looking information can be identified by the use of words or phrases such as "estimate", "project", "anticipate", "expect", "intend", Rock Tech Lithium Inc. 600-777 Hornby Street | Vancouver | British Columbia | Canada | V6Z 1S4 P. +1.778.358.5200 | F. +1.604.670.0033 www.rocktechlithium.com | bbarnett@rocktechlithium.com TSXV: RCK | Frankfurt : RJIB | OTCQX: RCKTF "believe", "hope", "may" and similar expressions, as well as "will", "shall" and all other indications of future tense. All forward-looking information set forth in this news release are expressly qualified in their entirety by the cautionary statements referred to in this section.

Forward-looking information is based on certain estimates, expectations, analysis and opinions that are believed by management of Rock Tech to be reasonable at the time they were made or in certain cases, on third party expert opinions. It should be noted that, in order to achieve its objectives, Rock Tech will be required to raise additional funding and the availability of financing on satisfactory terms is not guaranteed. This forward-looking information was derived utilizing numerous assumptions regarding, among other things, the supply and demand for, deliveries of, and the level and volatility of prices of, intermediate and final lithium products, expected growth, performance and business operation, prospects and opportunities, general business and economic conditions, results of development and exploration, Rock Tech's ability to procure supplies and other equipment necessary for its business, including development and exploration activities. The foregoing list is not exhaustive of all assumptions which may have been used in developing the forward-looking information. While Rock Tech considers these assumptions to be reasonable based on information currently available, they may prove to be incorrect.

Forward-looking information should not be read as a guarantee of future performance or results. In addition, forward-looking information involves known and unknown risks and uncertainties and other factors, many of which are beyond Rock Tech's control, that may cause Rock Tech's actual events, results, performance and/or achievements to be materially different from that which is expressed or implied by such forward-looking information. Risks and uncertainties that may cause actual events, results, performance and/or achievements to vary materially include the risk that Rock Tech will not be able to meet its financial obligations as they fall due, changes in commodity prices, Rock Tech's ability to retain and attract skilled staff and to secure feedstock from third party suppliers, unanticipated events and other difficulties related to construction, development and operation of converters and mines, the cost of compliance with current and future environmental and other laws and regulations, title defects, competition from existing and new competitors, changes in currency exchange rates and market prices of Rock Tech's securities, Rock Tech's history of losses, impacts of climate change and other risks and uncertainties discussed under the heading "Financial Instruments and Other Risks" in Rock Tech's most recently filed Management Discussion and Analysis, a copy of which is filed electronically through SEDAR and is available online at www.sedar.com . Such risks and uncertainties do not represent an exhaustive list of all risk factors that could cause actual events, results, performance and/or achievements to vary materially from the forwardlooking information. We cannot assure you that actual events, results, performance and/or achievements will be consistent with the forward-looking information and management's assumptions may prove to be incorrect.

Our forward-looking information reflects Rock Tech management's views as at the date the information is created. Except as may be required by law, Rock Tech undertakes no obligation and expressly disclaims any responsibility, obligation or undertaking to update or to revise any forward-looking information, whether as a result of new information, future events or otherwise, to reflect any change in Rock Tech's expectations or any change in events, conditions or circumstances on which any such information is based. The forward-looking information contained herein is presented for the purposes of assisting readers in understanding Rock Tech's plans, objectives and goals and is not appropriate for any other purposes. Given these uncertainties, readers are cautioned not to rely on the forward-looking information set forth in this news release.

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SOURCE Rock Tech Lithium Inc.

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Rock Tech Lithium

Rock Tech Lithium

Overview

The green energy movement is gaining momentum as the demand for electric alternatives to power, transportation and production accelerates. To meet this growing demand, accessibility and supply chain considerations of the critical metals needed to power this revolution are key in transitioning to a more sustainable world.

Analysts expect global lithium demand to reach 1 million tonnes lithium carbonate equivalent (LCE) by 2025, from 47,300 tonnes in 2020 to 117,400 tonnes in 2024, owing largely to rapidly increasing electric vehicle production. As the West competes for this limited resource, securing local lithium sources to meet increasing demand will be the key to minimizing environmental impact, transportation costs and carving a place in the future of green energy that is fast becoming a reality.

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Vertically Integrated Lithium Production and Processing

Altech Batteries Ltd  CERENERGY Battery Prototype Reaches Key Milestones

Altech Batteries Ltd CERENERGY Battery Prototype Reaches Key Milestones

Perth, Australia (ABN Newswire) - Altech Batteries Limited (ASX:ATC,OTC:ALTHF) (FRA:A3Y) (OTCMKTS:ALTHF) is pleased to announce the latest performance results of the CERENERGY(R) cell and battery pack prototypes. These results confirm the technological maturity and robustness of the CERENERGY(R) technology and mark another decisive step towards industrialisation.

Highlights

- 650+ cycles with no capacity loss, proving exceptional material stability and long operational lifespan compared to conventional batteries

- Near 100% Coulombic efficiency, confirming minimal side reactions and strong intrinsic safety of sodium nickel chloride chemistry

- High energy efficiency of up to 92%, surpassing typical 70-80% levels of competing battery technologies

- Proven safety under extreme conditions - cells remained stable during overcharge, deep discharge, and thermal cycling up to 300 degC with no gassing, leakage, or rupture

- Robust and reliable chemistry - sodium nickel chloride avoids flammable electrolytes and runaway risks, confirming suitability for safe, large-scale grid and renewable energy storage

- ABS60 prototype validated under real-world conditions -tested across diverse load profiles, high-current pulses up to 50 A, and thermal variations

- Stable, efficient performance - achieved ~88% round-trip efficiency with no observable capacity fade over 110+ cycles

CELL PERFORMANCE

The CERENERGY(R) prototype cells have successfully completed over 650 charge-discharge cycles without any detectable capacity loss. Cycle life is a critical measure of battery durability, as most conventional batteries experience gradual degradation with every cycle. Achieving such performance highlights the outstanding stability of the materials and points to the potential for a long operational lifespan.

For stationary energy storage systems (ESS), this translates into fewer battery replacements, lower lifetime operating costs, and greater reliability for end users.

The cells also delivered nearly 100% Coulombic efficiency alongside an energy efficiency of up to 92% across 650 cycles. Coulombic efficiency reflects the proportion of charge recovered during discharge relative to what was supplied during charging. A value approaching 100% indicates minimal side reactions or parasitic losses, confirming the intrinsic stability and safety of sodium nickel chloride chemistry. This high efficiency demonstrates that the cells are not expending energy on unwanted processes such as electrode degradation. Such performance is vital for scalability, ensuring reliable, longterm operation in commercial energy storage applications.

Energy efficiency represents the proportion of energy delivered relative to the energy supplied. Competing technologies, including conventional high-temperature batteries and many flow batteries, typically achieve only around 70-80%. By reaching 92%, CERENERGY(R) positions itself in a highly competitive class, offering more cost-effective energy storage, stronger economics for grid operators, and seamless compatibility with the requirements of renewable energy integration.

The cells achieved a nominal capacity of 100 Ah and 250 Wh, with reliable performance even at higher discharge rates. A key feature is their ability to support multiple daily charge-discharge cycles within the 20-80% state of charge (SoC) range at 25 A. This capability positions CERENERGY(R) as a highly flexible solution for grid operators and energy storage providers, enabling cost-efficient, long-life performance in applications that demand frequent cycling such as renewable integration, peak shaving, and backup power.

CERENERGY(R) prototype cells underwent rigorous abuse testing, including overcharge to 4 V, deep discharge to 0.2 V, and thermal cycling between room temperature and 300 degC. In all cases, the cells remained stable with no gassing, leakage, or rupture -clear proof of their outstanding safety. These results highlight the intrinsic stability of sodium nickel chloride chemistry, which avoids the flammable electrolytes and runaway risks common in lithium-ion batteries. The ability to withstand extreme electrical and thermal stress demonstrates CERENERGY(R)'s robustness and confirms its suitability for safe, largescale deployment in grid, renewable, and industrial energy storage applications. This was achieved over 3 cycles with 1.8 Full Charge Equivalent (FCE) into 22 hours.

BATTERY PACK ABS60 (60 kWh) PROTOTYPE

The first ABS60 battery pack prototype has been successfully validated under real-world operating conditions, marking a major step forward in product readiness. Testing included diverse load profiles,

continuous discharges at 25 A (equivalent to C-rate of C/4 (discharges in 4 hours), or one-quarter of the pack's rated capacity per hour) at 80% depth of discharge (DoD), short-duration high-current pulses up to 50 A, and carefully controlled thermal variations.

The pack consistently demonstrated stable performance, achieving ~88% round-trip efficiency while maintaining reliable thermal management. Efficiency refers to the proportion of input energy that can be retrieved during operation-a critical measure of economic viability for large-scale storage. Over more than 110 cycles, results showed no observable capacity fading and only a slight increase in internal resistance. Capacity fading refers to the gradual decline in usable energy over repeated cycles, while internal resistance influences power delivery and heat generation.

The absence of meaningful degradation confirms the durability and electrochemical stability of the ABS60 design. These outcomes are highly significant as they demonstrate that the pack can withstand real-world duty cycles while retaining performance and efficiency, translating into longer service life, fewer replacements, and lower total cost of ownership.

For grid operators and renewable integration projects, this combination of robust cycling capability, efficiency, and thermal stability underscores the ABS60's commercial readiness and competitive advantage in the stationary energy storage market.

These results are a strong confirmation of CERENERGY(R)'s technological leadership and a clear signal of the technology's competitiveness and robustness for future applications in energy storage and industrial markets.

Group Managing Director, Iggy Tan said "These results confirm CERENERGY(R)'s robustness and readiness for market adoption. Demonstrating long cycle life, high efficiency, and unmatched safety, we are now strongly positioned to deliver a competitive and sustainable alternative for grid and industrial energy storage."

*To view photographs, tables and figures, please visit:
https://abnnewswire.net/lnk/17QS44T3



About Altech Batteries Ltd:

Altech Batteries Limited (ASX:ATC,OTC:ALTHF) (FRA:A3Y) is a specialty battery technology company that has a joint venture agreement with world leading German battery institute Fraunhofer IKTS ("Fraunhofer") to commercialise the revolutionary CERENERGY(R) Sodium Alumina Solid State (SAS) Battery. CERENERGY(R) batteries are the game-changing alternative to lithium-ion batteries. CERENERGY(R) batteries are fire and explosion-proof; have a life span of more than 15 years and operate in extreme cold and desert climates. The battery technology uses table salt and is lithium-free; cobalt-free; graphite-free; and copper-free, eliminating exposure to critical metal price rises and supply chain concerns.

The joint venture is commercialising its CERENERGY(R) battery, with plans to construct a 100MWh production facility on Altech's land in Saxony, Germany. The facility intends to produce CERENERGY(R) battery modules to provide grid storage solutions to the market.

News Provided by ABN Newswire via QuoteMedia

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Battery Anode Material Refinery - Design & Location Update

Battery Anode Material Refinery - Design & Location Update

Metals Australia (MLS:AU) has announced Battery Anode Material Refinery - Design & Location Update

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IR1:IR1 Completes Acquisition to Consolidate Black Hills, US

IR1:IR1 Completes Acquisition to Consolidate Black Hills, US

Rapid Critical Metals (RLL:AU) has announced IR1:IR1 Completes Acquisition to Consolidate Black Hills, US

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Critical Minerals Market Expected to Reach $586 Billion by 2032 as Demand Grows for Supply of Essential Minerals

Critical Minerals Market Expected to Reach $586 Billion by 2032 as Demand Grows for Supply of Essential Minerals

FN Media Group News Commentary - Industry experts project that the global critical minerals market will continue maintaining substantial growth as it has in recent years. The global critical minerals market is experiencing unprecedented growth, primarily driven by the accelerating transition to clean energy technologies. According to the International Energy Agency (IEA), the market size of key energy transition minerals doubled over the past five years, aligning closely with the market size for iron ore mining. This surge is largely attributed to the tripling of lithium demand, a 70% increase in cobalt demand, and a 40% rise in nickel demand between 2017 and 2022, with clean energy applications accounting for significant portions of this demand. The sustainability of the global critical minerals market is increasingly influenced by governmental initiatives aimed at reducing environmental impact and enhancing resource efficiency. A recent report from DataM Intelligence projected that Critical Minerals Market Size reached US$ 328.19 billion in 2024 and is expected to reach US$ 586.63 billion by 2032, growing with a CAGR of 7.53% during the forecast period 2025-2032. The report said: "A notable trend in the critical minerals market is the increasing investment in mineral development, which witnessed a 30% rise in 2022 following a 20% increase in 2021. Lithium saw the sharpest investment increase at 50%, followed by copper and nickel. This investment surge is a response to the soaring demand for minerals like lithium, cobalt, nickel, and copper, driven by the deployment of clean energy technologies such as electric vehicles, wind turbines, and solar panels." Active companies in the markets this week include: Saga Metals Corp. (OTCQB: SAGMF) (TSX-V: SAGA), TMC the metals company Inc. (NASDAQ: TMC), Critical Metals Corp. (NASDAQ: CRML), Rio Tinto Group (NYSE: RIO), Empire Metals Limited (OTCQX: EPMLF) (LON: EEE).

News Provided by GlobeNewswire via QuoteMedia

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