Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

ETL.V ·

E3 Lithium and Pure Lithium Report Results From Phase 1 of the Lithium Metal Battery Joint Development Agreement

Partnerships & JV

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

E3 Lithium and Pure Lithium Report Results From Phase 1 of the Lithium

Metal Battery Joint Development Agreement

Calgary, May 22, 2025 – E3 LITHIUM LTD. (TSXV: ETL) (FSE: OW3) (OTCQX: EEMMF), “E3 Lithium” or the

“Company,” a leader in Canadian lithium, is pleased to announce the initial results from the battery cells

manufactured under the Joint Development Agreement with Pure Lithium Corporation (Pure Lithium”), using

E3 Lithium’s brines and DLE technology and Pure Lithium’s innovative extraction and battery technology.

As previously announced on March 13, 2025, several variations of lithium chloride concentrate that reflect

specific locations along the E3 Lithium process flow sheet within the commercial facility design were used

to make lithium metal anodes at Pure Lithium’s Boston facility. The lithium from the E3 concentrated lithium

chloride was e lectrodeposited as pure lithium metal onto a copper substrate, creating a complete, battery

ready anode. These anodes were then assembled by Pure Lithium into batteries , and their electrochemical

performance was evaluated in full cells. Notable results include:

• Lithium Metal Purity: The various E3 brine streams all achieved a very high purity level, > 99.9% pure

lithium metal as tested by ICP-OES analysis.

• Cell Performance (Life Cycle): This tests for the number of charge and discharge cycles the battery

achieves while retaining 80% of its capacity. All cells achieved over 500 cycles to date.

• Charge and Discharge Rates: This tests for the duration of a charge and discharge. These tests were

conducted at a 1C:1D ratio, one hour charge time and one hour discharge time.

The results of this study concluded that an easily producible version of E3’s lithium concentrate provided the

most cost-effective feedstock for use in Pure Lithium’s batteries. It also demonstrated the robustness of Pure

Lithium’s process, showing no performance differences between batteries made using lithium chloride from

E3’s Leduc Brines, and those made from Pure Lithium’s standard sources. The two companies continue to

collaborate on the development and planning of an integrated process that can deliver the highest purity

lithium metal anodes at the lowest possible cost.

“These results confirm that E3’s lithium concentrate can produce battery-ready lithium metal anodes using

Pure Lithium’s technology,” said Chris Doornbos, President and CEO of E3 Lithium. " The Pure Lithium team

has worked very hard in making these batteries and confirming the performance of our lithium. We are very

encouraged by the results, and I am excited by the prospect of developing a local lithium battery supply chain

in collaboration with Pure Lithium.”

“I am delighted to reinvent the lithium supply chain with E3 Lithium. We not only produced pure lithium metal

anodes from unconventional sources of lithium using a newly invented technology but also validated their

performance by cycling them in over 100 batteries . Rigorous electrochemical testing of battery materials is

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

imperative, and to get such great results consistently, using a technology that was specifically developed to

be cost effective, is truly exciting” said Emilie Bodoin, Founder, Chairman & CEO of Pure Lithium.

ON BEHALF OF THE BOARD OF DIRECTORS

Chris Doornbos, President & CEO

E3 Lithium Ltd.

E3 Lithium - Investor and Media Relations

Alexis de la Renaudiere

Investor Relations

[email protected]

587-324-2775

E3 Lithium - Media Inquiries

Kati Dolyniuk

External Relations

[email protected]

587-324-2775

About E3 Lithium

E3 Lithium is a development company with a total of 16.2 million tonnes of lithium carbonate equivalent

(LCE) Measured and Indicated 1 as well as 0.9 million tonnes LCE Inferred mineral resources2 in Alberta and

2.5 million tonnes LCE Inferred mineral resources3 in Saskatchewan. The Clearwater Pre-Feasibility Study

outlined a 1.13 Mt LCE proven and probable mineral reserve with a pre-tax NPV8% of USD 5.2 Billion with a

29.2% IRR and an after-tax NPV8% of USD 3.7 Billion with a 24.6% IRR1. E3 Lithium’s goal is to produce high

purity, battery grade lithium products to power the growing electrical revolution. With a significant lithium

resource and innovative technology solutions, E3 Lithium has the potential to deliver lithium to market from

one of the best jurisdictions in the world.

1: The Clearwater Project NI 43-101 Pre-Feasibility Study, effective June 20, 2024, is available on the E3 Lithium’s website

(e3lithium.ca/our-assets/technical-reports) and SEDAR+ (www.sedarplus.ca).

2: The mineral resource NI 43-101 Technical Report for the North Rocky Property, effective October 27, 2017, identified 0.9

Mt LCE (inferred) and is available on the E3 Lithium’s website (e3lithium.ca/our-assets/technical-reports) and SEDAR+

(www.sedarplus.ca).

3: The mineral resource NI 43-101 Technical Report for the Estevan Lithium District, effective May 23, 2024, identified 2.5

Mt LCE (inferred) and is available on the E3 Lithium’s website (e3lithium.ca/our-assets/technical-reports) and SEDAR+

(www.sedarplus.ca).

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

About Pure Lithium

Pure Lithium is a disruptive Boston -based lithium metal battery technology company led by inventor and

lithium expert, CEO Emilie Bodoin, and world -renowned battery and metallurgical expert, MIT Emeritus

Professor Donald R. Sadoway, as full-time CSO. The Company's novel Brine to Battery™ technology combines

metal extraction and anode production, unlocking unconventional sources of lithium. The resulting pure

lithium metal anode is the core component of our lithium metal vanadium oxide battery, a step -change

improvement over today’s lithium -ion technology in cell performance, cost, and safety. Additionally, the

battery is free of graphite, cobalt, nickel, and manganese. For more information, visit www.purelithium.io or

email [email protected].

Forward-Looking and Cautionary Statements

This news release includes certain forward -looking statements as well as management’s objectives,

strategies, beliefs and intentions or forward-looking information within the meaning of applicable securities

laws. Forward-looking statements are frequently identified by such words as “believe”, “may”, “will”, “plan”,

“expect”, “anticipate”, “estimate”, “intend”, “project”, “po tential”, “possible” and similar words referring to

future events and results. Forward -looking statements are based on the current opinions, expectations,

estimates and assumptions of management in light of its experience, perception of historical trends, and

results of the PFS, but such statements are not guarantees of future performance. In particular, this news

release contains forward -looking information relating to: the potential for delivery of lithium to market;

expected timing for releasing battery cell performance results; expectations regarding results of the

upcoming performance tests; timing for completion of the testing program; and the anticipated benefits of

the foregoing. In preparing the forward -looking information in this news release, the Company has applied

several material assumptions, including, but not limited to, that any additional financing needed will be

available on reasonable terms; the exchange rates for the U.S. and Canadian currencies will be consistent

with the Company’s expec tations; that the current exploration, development, environmental and other

objectives concerning the Clearwater Project can be achieved and that its other corporate activities will

proceed as expected; that the current price and demand for lithium will be sustained or will improve; that

general business and economic conditions will not change in a materially adverse manner and that all

necessary governmental approvals for the planned activities on the Clearwater Project will be obtained in a

timely manner and on acceptable terms; the continuity of the price of lithium; that the results of the testing

program will be delivered in a timely manner consistent with the Company’s projected timelines; and that the

results will be in line with management’s expectations.

All forward-looking information (including future-orientated financial information) is inherently uncertain and

subject to a variety of assumptions, risks and uncertainties, including the speculative nature of mineral

exploration and development, fluctuating commodity prices, the effectiveness and feasibility of emerging

lithium extraction technologies which have not yet been tested or proven on a commercial scale or on the

Company’s brine, risks related to the availability of financing on commercially reas onable terms and the

expected use of proceeds; operations and contractual obligations; changes in estimated mineral reserves or

mineral resources; future prices of lithium and other metals; availability of third party contractors; availability

of equipment; failure of equipment to operate as anticipated; accidents, effects of weather and other natural

phenomena and other risks associated with the mineral exploration industry; the Company’s lack of operating

revenues; currency fluctuations; risks related to dependence on key personnel; estimates used in financial

statements proving to be incorrect; risks related to the results of the testing program not being in delivered

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

in a timely manner and/or not being in line with management’s expectations; competitive risks and the

availability of financing, as described in more detail in our recent securities filings available under the

Company’s profile on SEDAR+ at www.sedarplus.ca. Actual events or results may differ materially from those

projected in the forward -looking statements and we caution against placing undue reliance thereon. We

assume no obligation to revise or update these forward-looking statements except as required by applicable

law.