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E3 Lithium Provides Continued Preliminary Results from the Field Pilot Plant

Metallurgy & Processing

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

E3 Lithium Provides Continued Preliminary

Results from the Field Pilot Plant

CALGARY, ALBERTA, October 4, 2023 – E3 LITHIUM LTD. (TSXV: ETL) (FSE: OW3) (OTCQX: EEMMF), “E3

Lithium” or “the Company,” Alberta’s leading lithium developer and extraction technology innovator, is

pleased to report it has completed additional predefined tests at the Direct Lithium Extraction Field Pilot

Plant with successful results.

“We are thrilled to be able to provide further updates on the operations of the field pilot plant,” said Chris

Doornbos, President & CEO of E3 Lithium. “The plan we put in place to test various operating parameters

has proved to be effective thus far. Not only have positive results been produced under several operating

conditions, we have also grown our confidence to design the most efficient processes to commercialize our

vast resource.”

As previously outlined, the series of three tests was designed to trial various operating parameters to select

the optimal set for an extended operating period. Preliminary internal analysis and results of the additional

test are outlined below:

• Initial lithium recovery: >94%

• Purity of concentrate: >80%

• Average lithium grade in concentrate: 916.6 mg/L

The change in operating parameters across this test was to optimize the cycle time (the amount of time the

sorbent was exposed to the brine). The tests outlined that we can decrease the amount of time the brine is

in contact with the sorbent. This optimization may lead to a reduction in the capital and operating costs of

the commercial plant, which will be outlined in the upcoming Pre-Feasibility Study (PFS).

Next Steps

The team has actively analyzed the data received from the pilot operation over the past six weeks and is

completing standard due diligence reviews. Once that work is complete, E3 Lithium will outline the full set

of results against the KPIs outlined on June 14, 2023.

The Company will use the results of the first three tests to set the conditions for the extended operating

period that is expected to begin next week. Upon completion of the longer operating period, E3 Lithium will

have the data required for its PFS and Definitive Feasibility (DFS) studies, as well as further engineering that

will lead to the construction and operation of its first commercial facility. This extended operation will also

produce lithium concentrate for further downstream processing of battery-grade Lithium Hydroxide

Monohydrate (LHM).

E3 Lithium Completes the Production of Lithium Hydroxide Monohydrate

E3 Lithium is also pleased to report that it continues to progress its downstream refining test work. The

Company has now produced LHM and will share more details in the coming weeks.

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

Separately, from the exercise of stock options that were or are soon to expire, some insiders plan on selling

a portion of their shares to pay for the associated tax liabilities. The insiders continue to remain supportive

of the Company and have collectively agreed to sell only the minimum required number of shares to cover

tax liability from their exercise and related expenses.

ON BEHALF OF THE BOARD OF DIRECTORS

Chris Doornbos, President & CEO

E3 Lithium Ltd.

E3 Lithium - Investor and Media Relations

Greg Foofat

Manager, Investor Relations

[email protected]

587-324-2775

About E3 Lithium

E3 Lithium is a development company with a total of 16.0 million tonnes of lithium carbonate equivalent

(LCE) Measured and Indicated and 0.9 million tonnes LCE Inferred mineral resources1 in Alberta. As

outlined in E3’s Preliminary Economic Assessment, the Clearwater Lithium Project has an NPV8% of USD

1.1 Billion with a 32% IRR pre-tax and USD 820 Million with a 27% IRR after-tax1. 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 Preliminary Economic Assessment (PEA) for the Clearwater Lithium Project NI 43 -101 technical report is

amended Sept 17, 2021. Gordon MacMillan, P.Geol, QP, Fluid Domains Inc. and Grahame Binks, MAusIMM, QP

(Metallurgy), formerly of Sedgman Canada Limited (Report Date: June 15, 2018, Effective Date: June 4, 2018 Amended

Date: September 17, 2021). The mineral resource NI 43-101 Technical Report for the North Rocky Property, effective

October 27, 2017, identified 0.9Mt LCE (inferred). The mineral resource NI 43-101 Technical Report for the Bashaw

District Project, effective March 21, 2023, identified 16.0Mt LCE (measured & indicated). All reports are available on

the E3 Lithium’s website (e3lithium.ca/technical-reports) and SEDAR+ (www.sedarplus.ca).

Forward-Looking and Cautionary Statements

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

and intentions. Forward looking statements are frequently identified by such words as “may”, “will”, “plan”, “expect”,

“anticipate”, “estimate”, “intend” and similar words referring to future events and results. Forward -looking statements

are based on the current opinions and expectations of management. All forward -looking 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,

Suite 1520 – 300 5th Ave SW

Calgary, AB T2P 3C4

Tel: +1 (587) 324-2775

Email: [email protected]

Website: e3lithium.ca

competitive risks and the availability of financing, as described in more detail in our recent securities filings available

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.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.