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Avalon Completes PEA: Post-Tax C$4.1 Billion NPV (8%) and 48% IRR at its Thunder Bay

Economic Studies

Avalon Completes PEA: Post-Tax C$4.1 Billion

NPV (8%) and 48% IRR at its Thunder Bay

Lithium Processing Facility, ON

Toronto, Ontario--(Newsfile Corp. - September 3, 2024) -

Avalon Advanced Materials

Inc.

(TSX: AVL) (OTCQB: AVLNF) ("Avalon" or the "Company")

, is pleased to announce the

completion of a Preliminary Economic Assessment

("PEA") for its Lithium Hydroxide Processing Facility

project in Thunder Bay, Ontario, Canada (the Project or the "Lake Superior Lithium Project").

The PEA prepared by DRA Americas Inc. demonstrates the Project's compelling economic viability. The

PEA considers a design capacity for the annual production of 30,000 tonnes of battery-grade lithium

hydroxide (LiOH).

All dollar values in this news release are expressed in Canadian Dollars unless

indicated. (USD:CAD = 1.36).

Key Highlights include:

After-tax Net Present Value ("NPV") of $4.1 billion at 8% discount rate

After-tax Internal Rate of Return ("IRR") of 48% for the 30-year period

Initial Capital Cost $1.2 billion and Total Capital Cost $1.3 billion

All-in Life-of-Project Operating Costs of $13,029/tonne (includes spod. purchased)

Innovative Metso Technology provides an environmentally clean process over conventional lithium

hydroxide processes

Strategically located in historical industrial land with well-established infrastructure

Avalon's CEO and Director Scott Monteith commented: "We are extremely pleased with the positive

outcomes of the PEA and will be advancing the project with a strong focus on environmental

sustainability. The strategic location of the Lithium Processing Facility on a brownfield industrial property,

positions us exceptionally well for permitting with existing infrastructure such as roads, rail, ports, and

utilities, supported by a strong local workforce.

These results reaffirm our view of the project's robustness and substantial economic potential for the

company, province and the country. The Project is poised to provide high-quality, battery-grade lithium

hydroxide to supply Canada's projected demand from the rapidly growing EV industry."

The study summary outcome is outlined in Table 1 below. The study assumes a spodumene concentrate

price of $1,360/tonne (USD$1,000/tonne) for the 30-year life of the project.

The spodumene concentrate

is expected to be sourced through competitive offtake agreements, purchasing of spodumene feed from

neighbouring mines, and potentially being supplied by the Separation Rapids Ltd. Joint Venture.

The long-term pricing of lithium hydroxide is assumed to be $35,360 /tonne (USD$26,000/tonne). A

Clean Technology Manufacturing Industrial Tax Credit of 30% was applied against the initial capital cost.

Table 1: Project Summary Financial Outcomes

Items

Units

PEA Sept. 2024

Operating Life

years

30

Steady State Annual Spodumene Feed

tpa

196,000

Spodumene Concentrate Pricing @ 6%

$ per tonne

1,360

Annual LiOH Production

tpa

30,000

LiOH Sale Price (long term) Life of Project

$ per tonne

35,360

Total Capital Cost

$Billion

1.3

After-Tax Net Present Value (NPV) @ 8% discount rate

$Billion

4.1

After-Tax Rate of Return (IRR %)

%

48

Steady State LiOH Conversion Costs

$/t LiOH

3,898

Spodumene Purchase Cost Delivered to Site

$/t LiOH

9,131

After-Tax Payback

years

2.5

LAKE SUPERIOR LITHIUM: PRELIMINARY ECONOMIC ASSESSMENT STUDY

The basis of this PEA is built on the utilization of the innovative Metso lithium hydroxide conversion

technology that is currently being tested.

This technology allows for a clean zero-discharge process with

no acid roasting and the production of a by-product that can be used as an industrial building material.

Table 2: Project Summary

Unit

(PEA) Results

Operating Costs

Steady State LiOH Conversion Cost

$/t LiOH

3,898

Spodumene Concentrate Price Assumption

$/t (6%)

1,360

Steady State Spodumene Cost

$/t LiOH

9,131

Capital Costs

Development Cost

$Million

931

Owners Cost

$Million

50

Contingency

$Million

233

Initial Capital Cost

$Billion

1.2

Sustaining Cost (over 30 years)

$Million

62

Closure Capital

$Million

40

Total Capital Cost

$Billion

1.3

Financial Performance

LiOH Sale Price Assumptions

$/t

35,360

After-Tax Net Present Value (NPV @ 8% discount rate)

$Billion

4.1

After-Tax IRR

%

48

After-Tax Payback

years

2.5

LAKE SUPERIOR LITHIUM HYDROXIDE FACILITY OVERVIEW

Avalon Advanced Materials Inc. owns 100% of the property situated on the north shore of Lake Superior

approximately 13 km northeast of Thunder Bay, at 965 Strathcona Avenue.

It was formerly a pulp and

paper facility last owned by Smurfit-Stone.

Figure 1: Location of Lake Superior Lithium Facility

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_73c1f74084c8c9ff_001full.jpg

METSO PROCESS DESIGN

The plant will utilize Metso's proprietary technologies, which includes calcination, pressure leaching,

conversion, purification through ion exchange (IX), and crystallization before the drying and packaging

processes to ensure the production of high-quality lithium hydroxide monohydrate.

Metso's technologies will enable the creation of a compact, energy-efficient lithium hydroxide production

plant with minimal chemical usage, aiming to produce 30,000 tpa of battery-grade lithium hydroxide

monohydrate (LHM).

A simplified Block Flow Diagram (BFD) of the process is shown below.

Figure 2: Simplified Block Flow Diagram of the Processing Facility to Produce LiOH

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_fig2avalon.jpg

Notes:

The production process includes the following stages: calcination of alpha spodumene, grinding, pulping of the ground beta spodumene,

slurry preparation for pressure leaching, pressure leaching of β-spodumene calcine in an autoclave, solid/liquid separation of pressure leach

slurry, conversion of autoclave residue, filtering and handling of leach residue, IX and solution polishing, crystallization of lithium hydroxide and

product handling, and effluent treatment.

SITE LAYOUT PLAN

Avalon holds 154 acres of lake front property east of Thunder Bay as well as 220 acres of property

covered by Lake Superior for a total of 374 acres. An aerial plan of the site layout has been developed

and is shown in the figure below.

Figure 3: Plan View of Site Area

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_73c1f74084c8c9ff_005full.jpg

Infrastructure

The Project benefits from having significant existing infrastructure, enabling accelerated development of

the project.

Roads

The property is accessed via Shipyard Road which intersects Strathcona Avenue.

Strathcona Avenue is

linked to the Trans-Canada Highway (Highway 11 / 17) by Spruce River Road just East of the property.

Internal roads for the property will be developed to access all buildings for personnel movement and

commercial deliveries.

Port

An existing deep-water port will provide access to the property via Lake Superior, enabling the products

to reach customers in Ontario and beyond. Plans are in place to refurbish the existing port. An existing

warehouse adjacent to the deep-water port will be utilized for offloading spodumene concentrate from

the Great Lakes freighters. The warehouse will be refurbished and retrofitted with material handling

equipment to receive the spodumene concentrate.

Figure 4: 3D Conceptual Design of Enhanced Deep-Water Port

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_73c1f74084c8c9ff_006full.jpg

Rail

A CN Rail line runs along the property dead ending just east of the property.

A spur from the rail line

currently enters from the northeast corner.

The rail spur splits into multiple spurs and enters the existing

warehouse adjacent to the deep-water port.

Additional spurs will be added to allow for spodumene

concentrate offload and analcime load out.

The existing spurs entering the warehouse will require

refurbishment.

Rail will be the primary method used for the delivery of spodumene concentrate when the lithium mines in

the region come online in the years to come.

Rail will also be utilized to transport reagents to site and

byproducts from site.

Figure 5: Proposed Rail Offload

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_73c1f74084c8c9ff_007full.jpg

Spodumene Concentrate Storage

After being offloaded the spodumene concentrate will be conveyed from the rail and deep-water port

facilities to a spodumene concentrate storage building.

The facility will provide dry storage feed buffering

for management of feed material and inventories, ensuring stable continuous operation of the process.

Fresh Water

Fresh water is required for the process, a freshwater intake is envisioned in Lake Superior.

Potable Water and Sewage

The property is serviced by Thunder Bay municipal sewage and potable water utilities.

Other Utilities

Two 115kVA power lines run adjacent to the property to the north.

An electrical substation will be

installed to connect to the grid power and provide electricity to the process. Natural gas is available on

site and will be primarily used for heating in the calciner process, and for building area heating.

Analcime Storage

A by-product, mix of Analcime and calcium carbonate will be produced from the process. The by-product

material will be dried and conveyed to the analcime storage building. The Analcime material can be

loaded onto railcars and shipped externally to customers to be used in industrial applications and

construction material such as concrete additive.

Figure 6: Analcime Storage Building

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_73c1f74084c8c9ff_008full.jpg

Office Building and Laboratory

An administrative office and analytical laboratory will be located on site north of the railroad tracks.

The

administration building will house offices, kitchen / lunchroom, conference rooms and restroom facilities.

The laboratory will be used for research and to test spodumene samples as well as product and

byproduct streams and internal streams within the process to ensure quality is met throughout the

process.

Figure 7: Administrative and Laboratory Building

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_73c1f74084c8c9ff_009full.jpg

LOGISTICS

The Thunder Bay industrial site is in an ideal location, facilitating efficient transportation of plant feed and

supplies.

Spodumene feed delivery will primarily utilize the CN rail line. The site's port facility is equipped

to receive feed material from international sources, while road accessibility and proximity to the main

Trans-Canada Highway provide additional logistical flexibility. This multi-modal transportation network

ensures that materials can be delivered via the most cost-effective and efficient means, whether by rail,

sea, or road.

Lithium hydroxide, the primary product, will be transported via truck and/or rail to various battery

manufacturers in southern Ontario and beyond. Given the significant daily production volume, the site will

maintain minimal on-site inventory, with product being shipped soon after packaging is completed.

PERMITTING

The Province of Ontario is committed to making the support of all projects in the battery supply chain a

top priority. The Premier and Cabinet have laid out a plan to drive investment, development, and

approvals of projects in the battery supply chain, a key part of the economic future of the province.

Expediting approvals for these projects will enable a timeline that meets the demands of end-users in the

province. Avalon will work closely with the province to ensure that the Government's objectives in the

battery supply chain are met.

GLOBAL LITIHUM MARKET OUTLOOK

According to a report by Fortune Business Insights, the global lithium market was valued at USD $22.19

billion in 2023 and is projected to grow significantly. It is expected to expand from USD $22.88 billion in

2024 to USD$134.02 billion by 2032, exhibiting a compound annual growth rate (CAGR) of 22.1%

during the 2024-2032 forecast period.

This robust trajectory highlights the increasing demand for lithium, driven by its critical applications in

electric vehicles (EVs), energy storage systems, and portable electronics. Avalon's efforts are aimed at

integrating our high-quality, battery-grade lithium hydroxide into the supply chains that will fuel the future

of transportation and energy storage solutions, reinforcing our position as a pivotal supplier in the lithium

market.

The figure below shows the global lithium demand projected to surpass 3 million metric tons by 2030.

Figure 8: Lithium Supply and Demand Forecast

To view an enhanced version of this graphic, please visit:

https://images.newsfilecorp.com/files/3386/221680_fig8avalon.jpg

CAPITAL COST ESTIMATE

The development capital costs are summarized in the table below:

Table 3: Development Capital Costs

Description

Cost (CAD$ Million)

Direct Costs

713

Indirect Costs

218

Owners Costs

50

Contingency

233

Total

1,213

PROJECT SCHEDULE

The project timeline is presented below.

Production of lithium hydroxide is anticipated to commence in

Q4 2028. Continuous project schedule optimization will be ongoing to strike a balance of permitting