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E3 Lithium Outlines Clearwater Project Pre-Feasibility Study and Confirms Lithium Reserves

Economic Studies

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Website: e3lithium.ca

E3 Lithium Outlines Clearwater Project Pre-Feasibility Study and

Confirms Lithium Reserves

CALGARY, ALBERTA, June 26, 2024 – E3 LITHIUM LTD. (TSXV: ETL) (FSE: OW3) (OTCQX: EEMMF), “E3

Lithium” or the “Company,” a leader in Canadian lithium, is pleased to announce the summary of key results

from the Pre-Feasibility Study (“PFS”) for its Clearwater Project, located in south-central Alberta. The PFS

outlines the Clearwater Project's economic viability, environmental sustainability and long-term operational

potential, and reports Canada's first lithium-in-brine proven mineral reserve.

The completion of the PFS incorporates 12 months of engineering and design work and includes the data

and learnings from the successful 2023 Direct Lithium Extraction (DLE) Field Pilot Plant, as well as the in-

house verification testing. The detailed flow sheet outlines a lithium chloride produced from a DLE system

and further purified and concentrated. A two-stage chemical conversion process first produces lithium

carbonate and then battery quality lithium hydroxide. Critical to sustainability is implementing practices to

minimize environmental impact associated with lithium production.

Highlights of the Pre-feasibility Study:

• Initial production: 32,250 tonnes per annum Lithium Hydroxide Monohydrate (LHM)

• 50-year operating life: covers only a portion of the total Bashaw District

• Reserves: 1.29 million tonnes (Mt) of LHM Proven & Probable lithium mineral reserve (1.14 Mt Lithium

Carbonate Equivalent (LCE)) from the total Bashaw District of 18.4 Mt of LHM Measured and Indicated

mineral resource (16.2 Mt LCE) located in the Leduc Reservoir

• Strong Project Economics: After-tax NPV $3.72 Billion with a 24.6% IRR at an 8% discount rate (pre-tax

NPV8 of $5.18 Billion with a 29.2% IRR) using Benchmark Mineral Intelligence’s (BMI) LHM price

forecast

• Initial Capital Expenditure (CAPEX): $2.47 Billion includes water recycling and contingency

• Initial Operating Costs (OPEX): $6,200 per tonne LHM provide for a long life and robust project

fundamentals

• Sustainably produced lithium: Process water for the operation will be sourced from recycling and

make-up water from waste brine stream, smaller surface footprint relative to conventional lithium

production4 with potential plant emissions of 1.9 tonnes CO2e/tonne LHM.

“The Clearwater Project PFS outlines, for the first time, the viability of lithium from the brines in Alberta,”

said Chris Doornbos, President and CEO of E3 Lithium. “This report signifies a fundamental shift for E3

Lithium, setting us on a clear pathway to commercial development and positions the Clearwater Project and

Bashaw District as a strategic lithium asset in Canada and North America. I want to thank the entire team

for their outstanding effort in completing this major company milestone and demonstrating the potential of

how sustainable lithium can be produced.”

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Email: [email protected]

Website: e3lithium.ca

Clearwater Pre-Feasibility Study Technical Details:

The completion of the Pre-Feasibility Study (PFS) is significant milestone for E3 Lithium. The PFS outlines

the detailed process to produce battery grade lithium hydroxide and reports the first lithium brine proven

mineral reserves in Canada. The PFS was completed by Sproule Associates Limited, Matrix Solutions Inc,

Sedgman Canada Ltd and Stantec Inc.

The completion of the PFS positions the Clearwater Project as a sustainable source of lithium in the stable

and reliable jurisdiction of Alberta.

Clearwater Project Summary

Metric Units Value

Initial Production Tonnes LHM/year 32,250

Average Production (50-year) Tonnes LHM/year 25,850

Total Initial Capital (CAPEX) M US$ 2,465

Total Sustaining & Abandonment Capital M US$ 1,799

Annual Operating Cost (OPEX) M US$ 187

Initial Operating Costs (OPEX/tonne) US$/tonne 6,200

Average Operating Costs (OPEX/tonne) US$/tonne 7,250

Average LHM Price (BMI) US$/tonne 31,344

Average Annual EBITDA1 M US$ 531

IRR (pre-tax) % 29.2

IRR (after-tax) % 24.6

NPV8 (pre-tax) M US$ 5,178

NPV8 (after tax) M US$ 3,717

Payback Years 4.25

All prices quoted in this news release are USD unless otherwise stated.

Mineral Resources and Reserves

The Bashaw District includes an updated 18.4 Mt LHM (16.2 Mt LCE) Measured and Indic ated mineral

resource estimate, leveraging the same methodology as described in E3’s news release dated March 21, 2023.

Additional lithium grade sampling results modified the P50 grade concentration to 75.5 mg/L, resulting in an

increase in the total estimated resource volume.

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Bashaw District Mineral Resources2

Original Lithium in Place (OLIP)

Li

(tonnes)

LCE

(tonnes)

LHM

(tonnes)

TOTAL 3,046,800 16,218,100 18,421,000

Indicated Mineral Resource 1,790,500 9,530,900 10,825,450

Measured Mineral Resource 1,256,300 6,687,200 7,595,500

The Clearwater Project’s Proven and Probable lithium brine mineral reserve is 1.29 Mt LHM (1.13 Mt LCE).

The Clearwater Project mineral reserve is contained within the Bashaw District Measured and Indicated

lithium mineral resource, totaling 18.4 Mt LHM (16.2 Mt LCE). Measured resource estimates can be converted

to proven or probable reserve estimates, and indicated resource estimates can be converted to probable

reserves estimates.

Clearwater Project Reserves3 Li

(tonnes)

LCE

(tonnes)

LHM

(tonnes)

TOTAL 213,750 1,137,850 1,292,400

Proven Reserves – initial 5 years 26,500 141,200 160,350

Probable Reserves – 6 to 50 years 187,250 996,650 1,132,050

Clearwater Project’s initial production and nameplate capacity is projected to be 32,250 tonnes of lithium

hydroxide per year. The Clearwater has a projected production life of 50 years. Over this time, the lithium

grade declines over the 50-year period as mixing occurs within the reservoir drainage pattern. This

projection is based on a thorough analysis that informed the creation of a detailed reservoir development

plan. Production values were determined based on comprehensive reservoir data, to ensure a solid

foundation for future operations.

The mineral reserve estimate uses an average lithium price of $31,344 per tonne LHM, and uses negative

cash flow as the economic cut-off, which was not realized within the 50-year production life of the project.

The total reserve volumes account for 38% of the mineral resource volume within the project area. Capital

cost estimates used industry standard estimating practices for a Class 4 estimate. Operating cost

estimates were compiled using vendor and engineering data.

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The Lithium Production Process

Extraction Of Lithium Brines

The Leduc Reservoir is a well understood ancient reef complex that has exceptional flow rates and

deliverability due to favourable rock properties and pressure. A geologic model and subsequent reservoir

production model were completed to provide estimates on the brine volume, lithium concentration and

producible brine across the Bashaw District. These models were further used to develop the production plan

that provided the wells, layout and volumes to be delivered to the Central Process Facility (CPF).

The reservoir drainage model is based on a standard “5-Spot” well network pattern. A total of 38 well pads

would produce the required lithium enriched brine: 19 well pads with 4 producing wells and 1 injection well;

and 19 well pads with 1 producer and 4 injection wells. The drainage area will have a total of 93 lithium

brine producing wells and 93 wells reinjecting the lithium depleted brine. Over time, lithium grade would

decline as reinjection brine reaches the production well. Workovers are planned to optimize recovery factor

by modifying the well completions. This results in a decline in the production of lithium hydroxide over the

50-year life of the project from 32,250 tonnes LHM per year initially to an average volume of 25,850 tonnes

LHM per year.

Brine Production Network: The 38 well pads will be connected via a series of local pipelines to the CPF.

These pipelines are underground, similar to oil and gas pipeline networks in Alberta.

Pretreatment: The pretreatment process for brine from the Clearwater area will involve receiving the brine

at 70°C and 800 kPa. The water/gas mixture is depressurized to release about 80% of dissolved gas, mainly

H₂S. The majority of the remaining gas is captured in a Vapour Recovery Unit in the holding tank. The

entrained gases are collected from the brine and re-injected into another reservoir that has no economic

value. The brine’s low total suspended solids are expected to be less than 350 mg/L, which would eliminate

the need for filtration before DLE.

Direct Lithium Extraction: Lithium chloride would be extracted from degassed brine through a DLE process

using an aluminate-based sorbent in a continuous separation process. This process involves columns

cycling across operating modes, controlled by dedicated valves.

The process produces no waste streams and requires no chemical treatment within the DLE process.

Purification and Volume Reduction: The Lithium chloride stream from DLE would then undergo purification

and concentration to remove contaminants, reduce volume, and recover water for reuse; this involves

filtration, reverse osmosis, nanofiltration, and conventional ion exchange processes. The last step of water

reduction involves evaporating with a Mechanical Vapor Recompression (MVR) unit, an energy efficient

method. The system deploys a “Zero Liquid Discharge” philosophy that recycles all available received water

from the various process steps back into an evaporator to produce purified water for use in the Desorption

step of the DLE system.

Conversion to Lithium Compounds: The purified lithium chloride would then be converted into lithium

carbonate using a chemical precipitation process. The slurry of lithium carbonate is then converted using a

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similar process into lithium hydroxide. The final lithium hydroxide stream is crystalized into a salt that can

be sold directly into the battery cathode manufacturing process.

The only industrial waste that leaves the CPF is calcium carbonate generated during the production of

lithium hydroxide. This product is used in cement and could have a market in Alberta or elsewhere. While

the PFS has assumed this would be disposed of, there is potential this calcium carbonate can be sold,

thereby adding a secondary revenue stream and eliminating all external waste.

Overall, the processing plant is expected to operate at a lithium recovery of 90.4% and an on-time factor of

92%.

Lithium Packaging: The dried lithium hydroxide will be screened and transferred to storage silos through a

CO2-free system, packaged in bulk bags via automated stations, and then conveyed to the loading station

for storage and transportation.

Capital Costs

The upfront capital costs of the Clearwater Project assume an initial production and nameplate capacity of

32,250 tonnes LHM per year are $2.47 B and are inclusive of the wells, pipelines, processing facility and

include 10% contingency on the wells and pipelines and 20% contingency on the plant infrastructure. It does

not include the capital for the power generation of carbon sequestration, which has been planned to be built

by a 3rd party power provider locally in Alberta where the costs are incorporated into the operating costs for

the price of power.

Section Installed Cost (US$ 000’s)

Brine production and brine injection wells 378,496

Brine production and injection pipelines 448,134

Brine Treatment 448,146

Lithium Extraction and Purification Unit 403,971

Lithium Carbonation Unit 106,803

Lithium Hydroxide Unit and packaging 148,341

Chemical Handling 52,741

Site Preparation (Allowance) 31,095

Buildings (Allowance) 49,751

First Fills 55,970

Contingency 342,028

Total CAPEX 2,465,476

Operating Costs

The initial operating costs (OPEX) for the project is projected at$ 6,200/tonne LHM. Over the life of the

project, production declines and the average OPEX over the life of the project increases to $ 7,250/tonne

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LHM. The all-in average OPEX, including sustaining and abandonment capital, over the life of the project is

projected at $8,250/tonne LHM.

Description Percentage

of Initial

Operating

Costs

Well Servicing 3%

Pipeline Leak Detection <1%

Maintenance 12%

Chemicals and Trucking 33%

Power and Natural Gas 39%

Waste Disposal 2%

Operations Personnel 9%

Miscellaneous Cost 2%

Total Annual OPEX 100%

Infrastructure

The Clearwater Project will be strategically located within an approximate 10km radius of essential

infrastructure, including power and roads, to minimize the expenses related to infrastructure development.

Extended infrastructure, such as railway and natural gas, are within approximately 25km of the site. The

project is within 2km of a major highway which ensures year-round access and convenient equipment

delivery while providing local stimulus and access for staff from nearby towns and cities and eliminating

the need for remote camps.

Sustainability

E3 Lithium is committed to environmental sustainability and is developing processes that aim to make the

Clearwater Project as sustainable as possible, ensuring the plant operates with minimal environmental

impact.

Water Usage: E3 Lithium addresses the consumption of water by deploying advanced filtration and

membrane technologies such as Nanofiltration (NF) and Reverse Osmosis (RO) to enhance water recovery

in the extraction and refining process. E3 Lithium is also implementing Zero Liquid Discharge (ZLD), which

means all process-affected water generated from these systems is recycled back to the process water

storage tank. Any additional make-up water required will be sourced from the lithium depleted brine and all

of this will be evaporated and condensed using industrial processes to produce purified water, mainly for

use in the Desorption process. The ZLD philosophy ensures no liquid waste is released, maximizing water

reuse. It also means that once in operation, E3 Lithium should not need to source any water from the

environment to make their lithium products.

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Land Use: Compared to conventional lithium projects, the Clearwater Project seeks to minimize its

environmental footprint by occupying a small portion of land. After construction of the well pads and the

pipelines, the majority of the disturbance is reclaimed to its original use immediately. Between the 38 well

pads and the CPF, E3 Lithium will use only 10% land relative to a hard rock mine and 4% relative to an

evaporative salar4. At the end of the project, the Company will aim for 100% reclamation of the project site.

There are no planned tailings.

Carbon Emissions: The project designs include a natural gas fired co-gen power facility that will both

generate the required electricity and the heat (in the form of steam) for the CPF. As part of this, E3 Lithium

plans to capture the carbon dioxide from the exhaust gas of the power plant and sequester it, supported by

recent policy put in place by the Alberta government. If implemented, the carbon emissions from the plant

site operations would be an estimated 1.9 tonnes CO2e/tonnes LHM.

Technical Report

A technical report in respect of the PFS (Technical Report) will be completed in accordance with National

Instrument 43-101 – Standards of Disclosure for Mineral Projects (NI 43-101) and will be filed on the

Company’s profile on SEDAR+ within 45 days of this news release.

Qualified Persons & Data Verification

The persons who will author the Technical Report include: Daron Abbey, M.Sc., P. Geo of Matrix Solutions

Inc; Alex Haluszka, M. Sc., P. Geo of Matrix Solutions Inc; Meghan Klein, P. Eng, of Sproule Associates

Limited; Antoine Lefaivre, P. Eng, of Sedgman; and Keith Wilson, P. Eng., of Stantec Inc, each of whom is a

“qualified person” as defined under NI43-101 (collectively, the Qualified Persons). Each of the Qualified

Persons prepared or supervised the preparation of the information that forms the basis of the PFS that is

included in the news release. Each of the Qualified Persons has reviewed and approved the technical

information in this news release within their area of expertise and are independent of E3 Lithium.

The Qualified Persons verified the data that forms the basis of the PFS, including sampling, analytical, and

test data.

- In addition, the Qualified Persons have reviewed the content in the news release that pertains to

information on the Company that is not derived from the PFS as set out below: Daron Abbey M.Sc.,

P.Geo and Alex Haluszka M.Sc., P.Geo verified the data used to estimate the mineral resource

volumes, including: E3 Lithium’s 2017-2024 sampling programs (lithium concentrations); historical

production and injection volumes of hydrocarbons and brines (regional pressure measurements,

rate data); public well data such as logs, core analysis, and drill stem tests which were interpreted

to evaluate formation depths and thicknesses, geological facies, lithology, total and effective

porosity, and permeability; E3 Lithium’s 2022 evaluation well program including production tests;

core analysis for total porosity, effective porosity and permeability; facies descriptions; brine

chemical analysis; confirmation of reservoir lithology and pressure.

- Meghan Klein P. Eng verified the data used to estimate the mineral reserve volumes, including:

geostatistical static model; dynamic model; reservoir simulation; capital and operating cost

estimates; price forecasts; market studies; and economic model.

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- Antoine Lefaivre P. Eng verified the data used to validate the mineral processing, recovery methods,

and project infrastructure, including: lab and field test results; analytical methods; process

calculations; block flow diagrams; process flow calculations; facility design; equipment

specifications; and energy, water, and process material requirements.

- Keith Wilson P. Eng verified the data used to validate the environmental studies, permitting, and

social/community impact, including: regulatory requirements; CO2e emissions calculations;

remediation and reclamation costs.

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

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 as well as 0.9 million tonnes LCE Inferred mineral resources5 in Alberta and

2.5 million tonnes LCE Inferred mineral resources6 in Saskatchewan. As outlined in E3 Lithium’s Pre-

Feasibility Study News Release dated June 26, 2024, the Clearwater Project has 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% IRR. 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: Earnings Before Interest, Taxes, Depreciation, and Amortization

2: Mineral resources are reporting using 2014 CIM Definition Standards, and are inclusive of reserves.

Mineral resources have a Reasonable Prospect for Eventual Economic Extraction. Daron Abbey, P. Geo and

Alex Haluska, P. Geo, of Matrix Solutions Inc., are Qualified Persons as defined in NI43-101, and are

responsible for the preparation of the technical information relating to the Bashaw District mineral resource

that is contained in this news release, with an effective date of June 20th, 2024. Daron Abbey and Alex

Haluszka have reviewed and approved the use and disclosure of such information in this news release.

3: Mineral reserves are reported using 2014 CIM Definition Standards, and have demonstrated economic

viability. Meghan Klein, P. Eng of Sproule Associates Limited, is a Qualified Person as defined in NI43-101,

and is responsible for the preparation of the technical information relating to the Clearwater Project mineral

reserve and economic analysis that is contained in this news release, with an effective date of June 20th,

2024. Meghan Klein has reviewed and approved the use and disclosure of such information in this news

release.