Dear Friends and Shareholders,

Rock Tech is entering the second half of 2026 with the clearest strategy in its history. This letter is about that strategy, and the conviction behind it.

When I took over, the company had a single focus project, Guben, and the balance sheet left little room for error as we worked to build a globally competitive lithium conversion business under challenging conditions. My assessment led to one conclusion: to realize our vision, our first converter must be highly economic and it needs a business environment flexible and bold enough to help establish the new supply chain. The engineering and permitting knowledge we built in Germany is genuinely world-class, but the right place to deploy it next is Canada. And Canada was asking for exactly that.

Last June, I was invited into Mark Carney’s trade delegation to Germany. In the year since, the conversations with federal and Ontario officials were crystal clear: Canada has committed to building a domestic critical minerals chain together with its G7 partners from the Critical Minerals Production Alliance and is prepared to back it with real capital. Three shifts define the Carney era, and together they changed our calculus. First, diversification is no longer an aspiration but policy. Through the G7 Critical Minerals Production Alliance, Canada is deliberately routing supply toward trusted partners. Second, the state no longer simply permits a project and steps back. It has signaled it will co-invest directly, for example through the CAD 25 billion Canada Strong Fund. Third, critical minerals are no longer treated as commodities but as strategic security assets, anchored in Canada’s defence industrial strategy and in bilateral partnerships such as the critical minerals declaration Canada and Germany signed in August 2025. Together, these shifts created what no private developer could assemble alone: a project like Red Rock, with a domestic offtake market, the potential for public co-investment, and strategic backing behind it. Additionally, Ontario is offering hydropower at a fraction of the German industrial power price.

We have therefore decided to make Canada our priority. Guben remains a fully permitted, fully engineered asset with real value, and we fully intend to realize it, on disciplined terms and in a smarter financial structure. For the first time, our strategy, our operating environment, and our capital are pulling in the same direction.

Let me take you through it in detail in the sections that follow.

1   The Integrated Play

We own 100% of Georgia Lake, a spodumene deposit in Ontario, just seventy kilometers away from the Red Rock Converter property. Together they will form a fully integrated mine-to-battery-grade-lithium supply chain in a single jurisdiction.

Guben delivers the engineering blueprint. But a standalone merchant converter is permanently exposed to spot feedstock markets. The integrated model we are advancing in Canada eliminates that exposure. We will capture margin at the mine and at the converter.

2   Georgia Lake: Step-Change in Economics

On 19 May 2026, we published ore-sorting test results from work with Queen’s University and STARK Resources, supported by Ontario’s Critical Minerals Innovation Fund. The findings are strong:

• Waste removed before processing: ~25–45%
• Feed-grade uplift: ~1.4–1.8×
• Capital reduction pathway: up to 50% on crushing and concentrator capital
• Operating cost reduction: ~20% indicative

* Illustrative management estimates. Preliminary; not incorporated into any resource estimate, PFS or DFS. Subject to DFS confirmation.

Ore sorting works at lower cutoff grades – meaning more of the deposit becomes mineable. Only ~10% of the property has been drilled. We are planning to launch a summer 2026 drill program targeting meaningful inferred resource addition. DFS award is expected for August 2026. DFS completion target: year-end 2026. Assuming FID in Q1 2027, first production follows approximately 18 months later – making Rock Tech the first lithium producer in Ontario and Georgia Lake the aggregator for neighboring lithium properties.

Lower capital to build, lower cost to run, and a recovering price will push Georgia Lake’s value well above the 2022 PFS after-tax NPV.

3   Red Rock: De-Risked Capital

Red Rock is the Guben blueprint applied to Canada – it is the same IP, now IRA- and USMCA-compliant and 70 kilometers from our own feedstock anchor Georgia Lake. But we learned another lesson in Germany: do not carry the full capital weight of a large-scale project on the holding company’s balance sheet. So, we built a better architecture – the GP/LP model. Rock Tech acts as General Partner and we retain operational control, our technology and management fees, while strategic and financial partners provide the majority of the project capital as Limited Partners.

Partners in place include: Siemens Canada (Digital Twin and automation equipment, signed at the Canadian Critical Minerals Forum; evaluating equity). BMI Group (anchor equity partner with CAD$ 200m, landowner), and government investments are being actively pursued at both the federal and provincial levels.

As important as the financing, we have received budgetary proposals for a fully-scoped turnkey EPC execution. The numbers show potential to substantially reduce our capital estimate relative to prior market assumptions – and they have a significantly better outlook than building under current German market conditions. The DFS will formalize this.

DFS award is expected for June 2026. Completion target: year-end 2026. FID target: Q1 2027.

4   Broadening the Shareholder Base

We are deliberately widening access to our stock on both sides of the Atlantic. The logic is the same in each market: deeper, more transparent trading and a broader investor base mean better liquidity and fairer price formation for every shareholder.

XETRA listing: The process is launched, with an approval expected shortly. This will open Rock Tech to share trading to large German institutional investors.

NASDAQ: Base shelf prospectus is filed, the application underway. We want to be ready when the time is right. We will list when FID for Red Rock is in hand and the business justifies it — targeting to fulfill NASDAQ listing requirements without share consolidation.

5   Guben Monetizing a Permitted, Fully-Engineered Asset

Germany remains important. Our Guben converter is fully permitted and engineered, and it holds Strategic Project status under the EU Critical Raw Materials Act. That value is real and we intend to realize it. But we will be disciplined about how.

The German framework conditions do not currently allow the pace we are achieving in Canada. Guben will be built only once two conditions are met: a solution for a competitive energy price can be implemented, and meaningful state support from German national level.

In the meantime, the project moves forward. We plan to restructure Guben around the same GP/LP model we are using in Canada: Rock Tech builds and operates the plant as General Partner, applying our engineering and our team, while strategic and financial partners provide capital as Limited Partners. These conversations are already underway. We are in active discussions with interested parties about a strategic sale, structured around the same logic. If the asset changes hands, Rock Tech still builds it and still runs it.

Either way, Guben becomes a source of cash and recurring income, on terms that benefit our shareholders.

6   What This Adds Up To

Step back and the picture is clear. We are turning our experience in Germany into cash. We are building, in Canada, the first integrated lithium producer in Ontario with a mine whose economics have just taken a step-change for the better, and our efforts are backed by government, BMI and Siemens. We are funding it through a capital-light GP/LP model that pays us from start of construction without dilution. And we are sequencing it toward a NASDAQ re-rating once our first FID is in hand.

Each of these steps is a value-creation catalyst!

Best regards,

Mirco Wojnarowicz

Chief Executive Officer, Rock Tech Lithium Inc.

June 2026Canada Changes Everything
– One Integrated Strategy –

Dear Friends and Shareholders,

Rock Tech is entering the second half of 2026 with the clearest strategy in its history. This letter is about that strategy, and the conviction behind it.

When I took over, the company had a single focus project, Guben, and the balance sheet left little room for error as we worked to build a globally competitive lithium conversion business under challenging conditions. My assessment led to one conclusion: to realize our vision, our first converter must be highly economic and it needs a business environment flexible and bold enough to help establish the new supply chain. The engineering and permitting knowledge we built in Germany is genuinely world-class, but the right place to deploy it next is Canada. And Canada was asking for exactly that.

Last June, I was invited into Mark Carney’s trade delegation to Germany. In the year since, the conversations with federal and Ontario officials were crystal clear: Canada has committed to building a domestic critical minerals chain together with its G7 partners from the Critical Minerals Production Alliance and is prepared to back it with real capital. Three shifts define the Carney era, and together they changed our calculus. First, diversification is no longer an aspiration but policy. Through the G7 Critical Minerals Production Alliance, Canada is deliberately routing supply toward trusted partners. Second, the state no longer simply permits a project and steps back. It has signaled it will co-invest directly, for example through the CAD 25 billion Canada Strong Fund. Third, critical minerals are no longer treated as commodities but as strategic security assets, anchored in Canada’s defence industrial strategy and in bilateral partnerships such as the critical minerals declaration Canada and Germany signed in August 2025. Together, these shifts created what no private developer could assemble alone: a project like Red Rock, with a domestic offtake market, the potential for public co-investment, and strategic backing behind it. Additionally, Ontario is offering hydropower at a fraction of the German industrial power price.

We have therefore decided to make Canada our priority. Guben remains a fully permitted, fully engineered asset with real value, and we fully intend to realize it, on disciplined terms and in a smarter financial structure. For the first time, our strategy, our operating environment, and our capital are pulling in the same direction.

Let me take you through it in detail in the sections that follow.

1   The Integrated Play

We own 100% of Georgia Lake, a spodumene deposit in Ontario, just seventy kilometers away from the Red Rock Converter property. Together they will form a fully integrated mine-to-battery-grade-lithium supply chain in a single jurisdiction.

Guben delivers the engineering blueprint. But a standalone merchant converter is permanently exposed to spot feedstock markets. The integrated model we are advancing in Canada eliminates that exposure. We will capture margin at the mine and at the converter.

2   Georgia Lake: Step-Change in Economics

On 19 May 2026, we published ore-sorting test results from work with Queen’s University and STARK Resources, supported by Ontario’s Critical Minerals Innovation Fund. The findings are strong:

• Waste removed before processing: ~25–45%
• Feed-grade uplift: ~1.4–1.8×
• Capital reduction pathway: up to 50% on crushing and concentrator capital
• Operating cost reduction: ~20% indicative

* Illustrative management estimates. Preliminary; not incorporated into any resource estimate, PFS or DFS. Subject to DFS confirmation.

Ore sorting works at lower cutoff grades – meaning more of the deposit becomes mineable. Only ~10% of the property has been drilled. We are planning to launch a summer 2026 drill program targeting meaningful inferred resource addition. DFS award is expected for August 2026. DFS completion target: year-end 2026. Assuming FID in Q1 2027, first production follows approximately 18 months later – making Rock Tech the first lithium producer in Ontario and Georgia Lake the aggregator for neighboring lithium properties.

Lower capital to build, lower cost to run, and a recovering price will push Georgia Lake’s value well above the 2022 PFS after-tax NPV.

3   Red Rock: De-Risked Capital

Red Rock is the Guben blueprint applied to Canada – it is the same IP, now IRA- and USMCA-compliant and 70 kilometers from our own feedstock anchor Georgia Lake. But we learned another lesson in Germany: do not carry the full capital weight of a large-scale project on the holding company’s balance sheet. So, we built a better architecture – the GP/LP model. Rock Tech acts as General Partner and we retain operational control, our technology and management fees, while strategic and financial partners provide the majority of the project capital as Limited Partners.

Partners in place include: Siemens Canada (Digital Twin and automation equipment, signed at the Canadian Critical Minerals Forum; evaluating equity). BMI Group (anchor equity partner with CAD$ 200m, landowner), and government investments are being actively pursued at both the federal and provincial levels.

As important as the financing, we have received budgetary proposals for a fully-scoped turnkey EPC execution. The numbers show potential to substantially reduce our capital estimate relative to prior market assumptions – and they have a significantly better outlook than building under current German market conditions. The DFS will formalize this.

DFS award is expected for June 2026. Completion target: year-end 2026. FID target: Q1 2027.

4   Broadening the Shareholder Base

We are deliberately widening access to our stock on both sides of the Atlantic. The logic is the same in each market: deeper, more transparent trading and a broader investor base mean better liquidity and fairer price formation for every shareholder.

XETRA listing: The process is launched, with an approval expected shortly. This will open Rock Tech to share trading to large German institutional investors.

NASDAQ: Base shelf prospectus is filed, the application underway. We want to be ready when the time is right. We will list when FID for Red Rock is in hand and the business justifies it — targeting to fulfill NASDAQ listing requirements without share consolidation.

5   Guben Monetizing a Permitted, Fully-Engineered Asset

Germany remains important. Our Guben converter is fully permitted and engineered, and it holds Strategic Project status under the EU Critical Raw Materials Act. That value is real and we intend to realize it. But we will be disciplined about how.

The German framework conditions do not currently allow the pace we are achieving in Canada. Guben will be built only once two conditions are met: a solution for a competitive energy price can be implemented, and meaningful state support from German national level.

In the meantime, the project moves forward. We plan to restructure Guben around the same GP/LP model we are using in Canada: Rock Tech builds and operates the plant as General Partner, applying our engineering and our team, while strategic and financial partners provide capital as Limited Partners. These conversations are already underway. We are in active discussions with interested parties about a strategic sale, structured around the same logic. If the asset changes hands, Rock Tech still builds it and still runs it.

Either way, Guben becomes a source of cash and recurring income, on terms that benefit our shareholders.

6   What This Adds Up To

Step back and the picture is clear. We are turning our experience in Germany into cash. We are building, in Canada, the first integrated lithium producer in Ontario with a mine whose economics have just taken a step-change for the better, and our efforts are backed by government, BMI and Siemens. We are funding it through a capital-light GP/LP model that pays us from start of construction without dilution. And we are sequencing it toward a NASDAQ re-rating once our first FID is in hand.

Each of these steps is a value-creation catalyst!

Best regards,

Mirco Wojnarowicz

Chief Executive Officer, Rock Tech Lithium Inc.

June 2026

The post Canada Changes Everything / One Integrated Strategy appeared first on Rock Tech Lithium.

Toronto, ON, June 11, 2025 – Rock Tech Lithium Inc. (TSXV: RCK) (OTCQX: RCKTF) (FSE: RJIB) (the “Company” or “Rock Tech”) is pleased to announce that it has been selected for funding under the prestigious KAVA (Knowledge and Innovation Activities) grant program by EIT RawMaterials, the most active network in the raw materials sector in Europe. This recognition supports Rock Tech’s ongoing commitment to advancing innovative lithium refining solutions in Europe and is the first funding awarded after Rock Tech’s Lithium Hydroxide Convertor Guben (LHCG) project has been recognized as a strategic project under Critical Raw Materials Project by the European Commission. Rock Tech will receive EUR 800,000 to improve and innovate its lithium conversion process to be applied to its Guben Converter in the future.

Under the KAVA Call-funding program, Rock Tech’s Lithium subsidiary company Rock Tech Guben GmbH will collaborate with leading research and industry partners, including NTUA (Greece), VITO (Belgium), and Admiris (Greece), to optimize lithium extraction processes and enhance lithium hydroxide monohydrate (LHM) production from spodumene. Rock Tech believes this optimization work will create substantial future operational and cost benefits for the Guben Converter.

“We are honored to be selected for the KAVA Call funding and to work jointly with partners to commercialize innovative, potentially game-changing lithium processing technologies”, comments Mirco Wojnarowicz, Rock Tech’s CEO.

The selected project, named OLiVer (Hard rock Lithium Extraction and Purified Value Products for Energy Applications) will demonstrate innovative processes at pilot scale, significantly improving lithium recovery efficiency and reducing environmental impact in line with EU green transition goals. The OLiVer project will focus on four main objectives:

1. Optimizing pyro-hydro-metallurgical processing to enhance lithium extraction efficiency from spodumene.
2. Developing a novel secondary lithium sulfate recovery process, enabling improved lithium recovery rates.
3. Integrating primary and secondary lithium sulfate streams to boost overall LHM production yield.
4. Conducting pilot-scale demonstrations to establish commercial viability for the enhanced lithium extraction process.

With this project, Rock Tech aims to drive forward the EU’s critical raw materials strategy and sustainability goals by producing high-purity LHM for electric vehicle batteries regionally.

The post First European Funding after getting recognition as a ‘Strategic Project’ – Rock Tech receives funding to lead Lithium Refining Innovation project by EIT RawMaterials appeared first on Rock Tech Lithium.

• In addition to the proposed senior debt tranche from the European Investment Bank (EIB), Export Credit Agency (ECA) support represents a vital component of the debt financing structure for large-scale infrastructure projects like the Guben Converter.

• Amidst market turmoil and Lithium price uncertainty Rock Tech’s Guben Converter – a strategic project under the EU’s Critical Raw Materials Act – remains the largest committed stand-alone Lithium refinery project in Europe.

Toronto, ON, 21 May 2025 – Rock Tech Lithium Inc. (TSX-V: RCK) (OTCQX: RCKTF) (FWB: RJIB) (WKN: A1XF0V) (the „Company“ or „Rock Tech“)is pleased to announce it has received up to EUR 150m in government-backed support from export credit agencies via conditional, non-binding expressions of interest. Specifically, UK Export Finance (UKEF) and the Finnish export credit agency (Finnvera) have expressed their interest to support the Guben Converter. In addition, discussions with further export credit agencies from Europe, Australia and China are ongoing to support the procurement of key equipment items from these countries. ECA support will be additional to the proposed European Investment Banks’s (EIB) senior debt tranche of EUR 150 million (as announced by the Company in a previous press release).

“We welcome the strong backing from Export Credit Agencies in supporting the Guben Converter project. Their engagement reflects confidence in our vision, the business case and the strategic importance of this facility for Europe’s green energy transition.” says Chris Wright, Rock Tech’s CFO.

In detail, the debt financing will benefit from the project’s European sourcing scheme, making the project eligible for credit guarantees from major European export credit agencies. Large packages for supplies and services are to be contracted with business & procurement partners based in United Kingdom and Finland, and other EU countries. Subject to the due diligence being completed concurrently in accordance with their policies and applicable OECD consensus guidelines by the lending consortium and the ECAs, UKEF and Finnvera have expressed their initial interest in supporting the project via guarantees towards the lenders.

About the Guben Converter

The Guben Lithium Converter is a pioneering facility in Guben, Brandenburg, Germany, by the German-Canadian company Rock Tech Lithium Inc. This plant is set to become Europe’s first commercial lithium hydroxide refinery, aiming to produce 24,000 tonnes of battery-grade lithium hydroxide annually—enough to supply over 500,000 electric vehicles per year.

Strategically located near major automotive and battery manufacturing hubs the Guben Converter is designed to strengthen Europe’s battery supply chain by processing spodumene concentrate secured via leading trading partner C&D Logistics (Qingdao) Co., Ltd. The Converter will utilize advanced crystallization technologies, supplied by GEA Group AG, to ensure high-purity lithium production with minimal environmental impact. The leading international engineering firm Worley Ltd. has been selected as construction partner (EPCM) for the plant.

Recognized as a strategic project under the EU’s Critical Raw Materials Act, the Guben Converter underscores Europe’s commitment to securing essential materials for the energy transition. The project is expected to create approximately 200 jobs and represents a significant step toward regionalizing and decarbonizing the lithium supply chain in Europe.

On behalf of the Management

Mirco Wojnarowicz

CEO, Rock Tech Lithium Inc.

The post Rock Tech receives EUR 150 million in Letters of Support for Guben Converter appeared first on Rock Tech Lithium.

The post ROCK TECH AWARDED STRATEGIC PROJECT STATUS BY EUROPEAN COMMISSION appeared first on Rock Tech Lithium.

The Units were offered to and subscribed by existing shareholders and new investors, notably funds from Europe. Rock Tech intends to use the proceeds of the Offering to finance the continued development of the Company’s integrated conversion strategy, and for general corporate purposes (including expenses incurred by the Company in connection with the Offering. The Company paid finder fees of EUR 23,967 to an arm’s-length party in connection with the closing of this Offering. 

Derek Sobel, CFO Rock Tech, comments: „On behalf of the entire team, I want to thank our shareholders for their continued trust and support. Their commitment to our strategy and long-term vision drives us to deliver growth and value. We remain focused on advancing our projects and adhering to disciplined financial management.” 

Each Unit consists of one common share in the capital of Rock Tech (the “Common Shares”, with such Common Shares comprising the Units, the “Unit Shares”) and one Common Share purchase warrant (each whole Common Share purchase warrant, a “Warrant”, and together with the Units and the Unit Shares, the “Securities”). Each Warrant entitles the holder thereof to purchase one Common Share (a “Warrant Share”) at an exercise price of $1.30 per Warrant Share for a period of 36 months following the date of issuance of such Warrant, subject to and in accordance with the terms and conditions of the certificate evidencing such Warrant, including adjustment in certain circumstances. The Securities offered pursuant to the Offering have not been, and will not be, registered under the United States Securities Act of 1933, as amended (the „U.S. Securities Act„), or any state securities laws of any state of the United States and accordingly may not be offered or sold within the United States except in compliance with the registration requirements of the U.S. Securities Act and applicable state securities laws or pursuant to exemptions therefrom. The Unit Shares and Warrant Shares have been conditionally accepted for listing on the TSX-V, which is subject to the final acceptance of the TSX-V. 

The company also announces that is has granted 2,380,000 stock options to certain directors, officers and employees of the Company. All Options were granted in accordance with the Company’s Stock Option Plan. 800,000 of the options were issued to Directors and Officers of the Company. The Options were granted at an exercise price of $1.00. The Options will vest immediately and are exercisable for a five-year term, expiring March 24, 2030.  

All dollar amounts in this news release are expressed in Canadian dollars.  

On behalf of the Board of Directors,  

Dirk Harbecke 

Chairman & CEO 

The post Rock Tech Announces Closing of Non-Brokered Private Placement appeared first on Rock Tech Lithium.

• The parties will establish a European joint-venture that controls Rock Tech’s Guben Converter in Germany, as well as Arcore’s Lopare project in Bosnia-Herzegovina.

• The business combination will cover the entire value chain from mine to battery-grade Lithium products.

• This fully integrated supply chain will ensure a reliable battery materials supply for Europe, create operational synergies, lower costs and substantially enhance international competitiveness.

• The binding Business Combination Agreement has been signed on February 19, 2025. Rock Tech will hold 75% control of the newly created company. Closing is targeted for Q2/2025.

Toronto, February 20, 2025 /CNW/ – Rock Tech Lithium Inc. (TSXV: RCK) (OTCQX: RCKTF) (FSE: RJIB) (“Rock Tech” or “the Company”) is pleased to announce the signing of a binding Business Combination Agreement (BCA) to form a business combination with Arcore AG (“Arcore”), an arm’s length Swiss-based mining company. The goal is to establish a fully integrated Lithium supply chain in Europe, reducing dependence on other regions for critical battery raw materials. Lithium is an essential mineral for the energy transition, and demand in Europe is expected to triple by 2030, driven by the increasing need for batteries in electric vehicles (EVs) and energy storage systems as estimated by McKinsey & Company’s Battery Insight Demand Model.

Dirk Harbecke, Rock Tech CEO & Chairman, comments: “Strong European supply chains are essential to secure the regions’ strategic autonomy, promote industrial competitiveness and enable the transformation to a climate-neutral economy. Europe is currently heavily dependent on imports of critical raw materials such as lithium. This is an important step for Rock Tech to become the European leader in battery raw materials supply.”

Jeff Stone, Interim CEO Arcore, states: “Caring for this exceptionally vital asset of the Republic of Srpska is a fiduciary duty that we assume with the utmost responsibility.  It is with that responsibility in mind that we formally submit our concession application.  It is a privilege for Arcore alongside Rock Tech to play a defining role in the creation of an independent European supply chain of critical metals.”

Vladimir Rudic, Managing Director of Arcore Doo in Bosnia-Herzegovina, adds: “The Lopare project, thanks to our collaboration and association with Rock Tech, and their cutting-edge technological innovations, will be the standard bearer of new trends in the development of sustainable mining in this traditional mining region.”

Formation of NewCo

Rock Tech and Arcore will establish a new European entity (NewCo). Upon Closing, it is intended that (i) Rock Tech will contribute the shares of its wholly owned subsidiary Rock Tech Guben GmbH to NewCo and will hold shares in NewCo representing 75% of NewCo’s registered share capital, and that (ii) ARCORE will contribute the shares of its wholly owned subsidiary AR CORE d.o.o to NewCo and hold shares representing 25% of NewCo’s registered share capital.

The core assets of NewCo will include Rock Tech’s fully permitted Lithium converter in Guben, Germany, and Arcore’s lithium-boron-magnesium mining project in Lopare, Bosnia-Herzegovina. It is envisioned that the Lopare project will deliver Lithium Sulphate feedstock (produced at site) to the Guben Converter from 2030 onwards; in addition to the already secured spodumene supply from contracted partners. Utilizing Lithium Sulphate as future feedstock is a key step in establishing a circular Lithium economy and reducing production costs significantly. This approach aligns with Rock Tech’s recycling flowsheet, for which Lithium Sulphate from black mass recycling is used and subsequently refined into battery-grade Lithium hydroxide at Rock Tech’s converters. By processing Lithium raw material to Lithium Sulphate at-site in Lopare an important value-adding step will remain in-country.

As leading partner of the NewCo, Rock Tech will engage closely with the local communities as part of the permitting process, leveraging its expertise gained from developing its Georgia Lake lithium project in Canada. The Arcore deposit will be developed in cooperation with local stakeholders and in compliance with the strictest environmental, social, and governance (ESG) standards. The company plans to obtain certification under the Initiative for Responsible Mining Assurance (IRMA) standard.

The Projects

Guben Lithium Converter

The centerpiece of Rock Tech’s European activities is its planned Lithium-Hydroxide Monohydrate (“LHM”) Converter in the Brandenburg battery cluster, designed to produce battery-grade LHM for up to 500,000 electric vehicles per year. The project is currently in its final financing phase, with all relevant construction, environmental and operation permits and engineering studies completed. The state of Brandenburg supports the project due to its high strategic relevance. Engineering and project management firm Worley Ltd. has been selected as the EPCM provider for the Guben Converter, and LHM offtake agreements as well feedstock supply have been secured.

Lopare Lithium Project

Arcore’s mineral deposit in the Lopare region of Bosnia-Herzegovina has the potential to become one of the largest lithium mines in Europe with estimated 600.000 tonnes of Lithium Carbonate Equivalent (LCE). According to the CSA Global Mineral Resource Estimate (MRE), the deposit contains an indicated resource of 426Mt grading 561ppm Li₂O and 0.95% B₂O₃ and an inferred resource of 864Mt grading 579ppm Li₂O and 0.67% B₂O₃, respectively. Beyond lithium and boron, the deposit contains significant concentrations of other valuable minerals. Internal estimates indicate that within the resource area, the material contains an average of 9.41% MgO, 2.3% K₂O, and 10.82% Al₂O₃. While these elements are not included in the reported Mineral Resource Estimate, they highlight the broader economic potential of the deposit.  

CSA Global Mining Industry Consultants, an ERM Group Company, completed a Mineral Resource Estimate titled “Lopare-Boron-Lithium-Project” as finalized on November 30 2022 with report number R268.2022. The Mineral Resource Estimate is summarized below in Table 1. Note, Arcore AG being a privately-owned Switzerland-based lithium mining company opted to adhere to Australian JORC Code 2012 guidelines, meaning that such mineral resource estimate may not align fully with the reporting requirements of Canada’s National Instrument 43-101.

The Lopare deposit remains highly prospective, with significant potential to expand the existing resource through additional exploration and technical studies. While elements such as MgO, K₂O, and Al₂O₃ are not currently included in the Mineral Resource Estimate, ongoing geometallurgical and mineralogical studies will further assess their economic significance. Moreover, exploration beyond the defined Mineral Resource suggests geological continuity, with a significant exploration target. This exploration target highlights the opportunity for further resource growth and optimization through future drilling programs and study work.

Following the successful completion of the exploration phase, the project has now applied for a Mining Concession. The first important step in the new joint venture will be the finalization of the pre-feasibility study to further assess the technical scope and quantify the economic benefits of the project. In addition to developing possible mining and processing methods, this study will comprehensively examine the environmental and social compatibility of the project. The study will be carried out by an internationally experienced engineering consultancy company.

With this joint venture, Rock Tech and Arcore are taking a significant step toward securing a sustainable, efficient, and competitive lithium supply chain in Europe, reinforcing the continent’s battery industry and energy transition goals.

—–

SCIENTIFIC AND TECHNICAL DISCLOSURE The scientific and technical disclosure included in this news release has been reviewed and approved by Cameron Andrews, P.Eng, General Manager Georgia Lake Project, a Qualified Person under National Instrument 43-101 Standards of Disclosure of Mineral Projects. 

CLOSING CONDITIONS The completion of this transaction remains subject to the fulfillment of all customary closing conditions, including but not limited to regulatory approvals, and compliance with applicable legal and tax requirements.

Neither the TSX venture exchange nor its regulation services provider (as that term is defined in policies of the TSX venture exchange) accepts responsibility for the adequacy or accuracy of this release. 

There are no finders’ fees associated with this transaction.

ABOUT ROCK TECH

Rock Tech’s vision is to supply the electric vehicle and battery industry with sustainable, locally produced Lithium, targeting a 100% recycling rate. To ensure resilient supply chains, the company plans to build Lithium converters at the doorstep of its customers, beginning with the Company’s proposed Lithium-Hydroxide Converter in Guben, Brandenburg, Germany. Rock Tech Lithium plans to source spodumene from its own Georgia Lake project in the Thunder Bay Mining District of Ontario, Canada, and procure from other ESG-compliant mines, including sourcing intermediary Lithium products. Ultimately, Rock Tech’s goal is to create a closed-loop Lithium production system. Rock Tech has gathered one of the strongest teams in the industry to close the most pressing gap in the clean mobility story. The Company has adopted strict environmental, social and governance standards and is developing a proprietary refining process to increase efficiency and sustainability further. Rock Tech Lithium Inc, 2400-333 Bay Street, Toronto ON M5H 2T6, CAN. Konstantin Burger, VP Investor Relations: press@rocktechlithium.com (+1) 416-848-7744

ABOUT ARCORE AG

Arcore is a privately-owned Switzerland-based lithium mining company with extensive lithium resources and a commitment to environmental and safety standards while seeking to accelerate Europe’s energy transition reliably. https://arcore.ch/ Arcore AG, Steinhauserstr. 74, 6300 Zug, Switzerland. Jeff Stone, Interim CEO email: press@arcore-lithium.com

CAUTIONARY NOTE CONCERNING FORWARD-LOOKING INFORMATION Certain statements contained in this news release constitute „forward-looking information“ under applicable securities laws and are referred to herein as „forward-looking statements“. All statements, other than statements of historical fact, which address events, results, outcomes or developments that the Company expects to occur are forward-looking statements. When used in this news release, words such as „expects“, „anticipates“, „plans“, „predicts“, „believes“, „estimates“, „intends“, „targets“, „projects“, „forecasts“, „may“, „will“, „should“, „would“, „could“ or negative versions thereof and other similar expressions are intended to identify forward-looking statements. In particular, this press release contains forward-looking information pertaining to expectations or predictions concerning the establishment of the joint venture company, the regulatory approvals, fulfilment of closing conditions, and/or about the mineral resource or reserve or outcome and proof of the expected potential of the Lopare Lithium project, the Company’s and/or Arcore’s intentions with respect to the development and timing thereof and statements regarding further exploration activities future plans, activities and schedules relating to such projects and related development including the design and features of the Guben Converter and/or the Lopare Lithium project, as well as the potential of the Lopare Lithium project and the expected costs, capital expenditures, timing and outcomes thereof; statements regarding the Company’s future plans, estimates, and schedules relating to the joint venture company, the Guben Converter and/or the Lopare Lithium project, including the anticipated timing of future activities taken in support of the development thereof;  Rock Tech’s potential financing arrangements; the expected economic performance of the Guben Converter and/or the Lopare Lithium project and anticipated production of battery-grade Lithium Hydroxide and related processing methods employed and the exploration of the Lopare deposit; the estimated capital and operating costs of the Guben Converter and/or the Lopare Lithium project; the anticipated timing and outcomes of a final investment decision and regulatory approvals,construction activities and commissioning of the Guben Converter; the anticipated timing and outcome of the pre-feasibility study of the Lopare Lithium project; statements regarding the Company’s sustainability and ESG related goals and strategy, including the benefits and achievement thereof and future actions taken by the Company in relation thereto; expected regulatory processes and final outcomes, permits and mining concessions; expectations regarding the electric vehicle industry, including the demand for and pricing of battery-grade Lithium Hydroxide and the benefits therefrom, expectations regarding the exploration targets and future drilling programs and the development of political and regulatory frameworks especially in Germany, Bosnia-Herzegovina and the European Union; Rock Tech’s opinions, beliefs and expectations regarding the Company’s business strategy, development and exploration opportunities and projects; and plans and objectives of management for the Company’s operations and properties. Forward-looking statements by their nature are based on assumptions and involve known and unknown risks, uncertainties and other factors which may cause the actual results to differ materially from the forward-looking statements, including the risks, uncertainties and other factors discussed in the Company’s most recent management’s discussion and analysis and annual information form filed with the applicable securities regulators. No assurances can be given that any of the events anticipated by the forward-looking statements will transpire or occur, and the Company cautions the reader not to place undue reliance upon any such forward-looking statements. The Company does not intend, nor does it assume any obligation to update or revise any of the forward-looking statements, whether as a result of new information, changes in assumptions, future events or otherwise, except to the extent required by applicable law.

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“This partnership is a testament to our commitment to sustainability and formation of a circular economy.” said Kerstin Wedemann, Chief Operations and Legal Office at Rock Tech. “By transforming waste into value, we enhance our profitability and support the cement industry’s decarbonization efforts.”  

“Ensuring the future supply of sufficient quantities of high-quality cement grinding materials is of great strategic importance for Schwenk. The LSC (Leached Spodumene Concentrate) produced during the operation of the planned Converter in Guben represents an interesting and regionally available source of secondary raw materials.” says Johan Trenkwalder, Member of the Management Board SCHWENK Germany 

Environmental and Economic Benefits 

The primary objective of the partnership is to develop industrial applications for residues generated from Rock Tech’s Lithium-Hydroxide production, specifically leach residues. During initial studies conducted by the Institute of Technologies and Economics of Lithium (ITEL), the leach residues demonstrated potential as Supplementary Cementitious Materials (SCM) for use in cement manufacturing, offering the following benefits: 

• New Revenue Stream and Improved Economics: Rock Tech will sell its by-products to Schwenk, thereby creating an additional income stream. The parties have agreed on key commercial terms, including offtake pricing for the product. 

• Lower Carbon Emissions: Using the leach residues as SCMs in cement production significantly reduces CO₂ emissions for Schwenk and reduces dependency on other SCMs from coal-based-energy production, which will be less widely available in the future. 

• Cost Savings: Avoiding leach residue transportation and disposal lowers Rock Tech’s annual operational expenditures by c. 7% and reduces the Guben Converter environmental impact. 

Upon the successful ramp-up of Rock Techs’ Guben Converter, Schwenk plans to invest into state-of-the-art facilities for drying, grinding, and storing leach residues from Lithium production. By 2029, Schwenk aims to use up to 200,000 tonnes of by-products annually, helping Rock Tech achieve its zero-waste goals.  

A Sustainable Partnership 

The agreement outlines that Schwenk eventually intends to offtake leach residues from Rock Tech’s Guben Converter. During the initial ramp-up phase, flexibility is prioritized, including the option of temporarily utilizing residues in the high-temperature cement processes, if required. To facilitate the widespread adoption of this innovation, both parties will jointly pursue critical certifications, including REACH compliance and approvals from the German Institute for Construction Technology (DIBt). The certification process is expected to take up to 1.5 years. As part of the agreement, both parties agree to exclusive cooperation for the duration of the agreement.  

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TORONTO, 27 November 2024

Rock Tech Lithium Inc. is proud to announce significant advancements at its Guben Converter site in Germany, bringing the project closer to completion of site preparation by Q1 2025. 

Two key goals have recently been achieved: 

1. Railway Connection Approved: The state railway supervisory authority (Landeseisenbahnaufsicht), within the Ministry of Infrastructure and State Planning, has granted approval to expand the Guben Süd industrial zone train line to Rock Tech’s site within the industrial area. This development will officially connect the Guben Lithium Converter to Germany’s rail network, enabling efficient transportation of critical raw materials such as spodumene concentrate from the ports of Hamburg and Bremen. The enhanced connection will also streamline the movement of reagents and by-products, ensuring smooth logistics for the facility’s operations. 
2. Gas Pipeline Relocation Completed: The relocation of the ONTRAS gas pipeline on the property has been finalized. The relocated pipeline is in operation since the 07^th Nov. and Rock Tech has now taken possession of the pipeline, with full ownership set to transfer on January 1, 2025, under the terms of a signed decommissioning agreement. 

These achievements mark significant progress in the development of the Guben Converter site, a cornerstone of Europe’s lithium supply chain. With nearly all preparatory construction tasks complete, the final steps include fencing the property and constructing a gas pressure reduction station, both scheduled for early 2025. 

“The completion of these milestones highlights the strong collaboration between Rock Tech and our Guben region partners,” said Henrik Wende, Plant Manager Guben. “We extend our gratitude to the City of Guben for its support and highly appreciate the availability of state funding for infrastructure improvements in Guben. We thank ONTRAS for assistance with gas pipe relocation, the State Railway Supervisory Authority for the railway connection permit, and IPP Hydro Consult GmbH for driving this project forward.” 

Rock Tech’s Guben Converter is set to play a pivotal role in Europe’s transition to sustainable energy by providing locally refined lithium hydroxide for electric vehicle batteries. These recent developments reinforce the Company’s commitment to delivering a robust and efficient supply chain solution for the European market.

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Rock Tech Lithium Inc. freut sich bekannt zu geben, dass es 1,4 Millionen CAD an Fördermitteln aus dem Critical Minerals Infrastructure Fund (CMIF) der kanadischen Regierung zugeteilt bekommen hat. Der CMIF ist eine staatliche Initiative zur Unterstützung von Projekten im Bereich saubere Energie und Transportinfrastruktur im Sektor der kritischen Mineralien Kanadas. Vorbehaltlich der endgültigen Due-Diligence werden die Mittel verwendet, um die Fairloch Lake Road auszubauen und zu verlängern, so dass der Transport von Lithium haltigem Spodumen von der geplanten Georgia Lake Mine zu den Convertern ermöglicht wird. Die Lake Nipigon Forest Management (eine forstwirtschaftliche Genossenschaft der Bingwi Neyaashi Anishinaabek, Biinjitiwaabik Zaaging Anishinaabek, Red Rock Indian Band, und Animbiigoo Zaagi’igan Anishinaabek) wurde mit dem Straßenbau beauftragt. 

Dirk Harbecke, CEO von Rock Tech, kommentierte: „Wir fühlen uns geehrt, diese Förderung zur Unterstützung der Entwicklung unser Georgia Lake Mine zu erhalten. Im Gegensatz zu vielen anderen Projekten in Ontario profitiert unser Projekt von einer strategisch äußerst günstigen Lage mit bereits vorhandener umfangreicher Infrastruktur. Dies führt zu niedrigeren Entwicklungskosten im Vergleich zu entlegeneren Projekten.“ 




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When did you join RCK and where are you based?
I joined RCK in May 2022 and am based in our Düsseldorf office in Germany. You may however meet me in several other countries in Europe, North America, or Asia during one of my many conference attendances.

What specific projects or initiatives have you been involved in recently?
My current focus is to finalize binding feedstock supply agreements for our Guben converter, which will be an important step forward towards FID.

What makes RCK a great place to work at?
RCK’s business is truly global, and our team is highly motivated to jointly achieve our vision. Working here I continue to learn every day and it is amazing to be building a business involving so many different cultures.

Tell us something about yourself outside the workplace.
Outside RCK I try to spend as much time as possible with my wife and our two sons.

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