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LithiumBank Signs Development Agreement with Leading Energy Services and Technology Supplier That Includes Binding DLE Licensing Terms to Advance Boardwalk to Commercial Production with Project Execution Targeted for 2027

Production Results Mine Development & Operations

LithiumBank Signs Development Agreement

with Leading Energy Services and Technology

Supplier That Includes Binding DLE Licensing

Terms to Advance Boardwalk to Commercial

Production with Project Execution Targeted

for 2027

Vancouver, British Columbia--(Newsfile Corp. - December 22, 2025) -

LithiumBank Resources Corp.

(TSXV: LBNK) (OTCQX: LBNKF)

("

LithiumBank

" or the "

Company

") is pleased to announce it has

entered into a Development Agreement ("

DA

") dated December 21

st

, 2025, with a Leading Energy

Services and Technology Supplier

("LESTS") (together the "

Parties

") to provide technical services

required to bring the Boardwalk lithium brine project ("

Boardwalk

"), located in northwest Alberta,

Canada, to production with project execution targeted for 2027. The DA envisions the Parties

collaborating in developing the Boardwalk asset using licensed modular Direct Lithium Extraction

("

DLE

") technology, and includes commissioning a Feasibility Study, front-end engineering design, and

engineering procurement and construction activities. The feasibility study envisions two initial DLE

modules together capable of up to 10,000 tonne per annum ("

tpa

") Lithium Carbonate ("

LCE

").

"We are pleased to have reached this juncture in Boardwalk's development, where we have a distinct

path toward commercial production," remarked Rob Shewchuk, CEO and Director of LithiumBank.

"We are confident in LESTS's proven track record as the primary development contractor for the

Boardwalk project. Their extensive experience in both subsurface and lithium processing

technologies empowers LithiumBank to expedite our development process. We anticipate a feasibility

study to be completed in 2026, which will significantly reduce our development timeline and costs

compared to alternative strategies. Furthermore, we anticipate that Boardwalk will generate minimal

new surface disturbance while simultaneously benefiting local communities. Additionally, our license

with LESTS's comprehensive proven DLE solution and modular approach is projected to scale

production by 5,000 tpa LCE increments with a capital intensity that we believe is more advantageous

than comparable brine projects in North America."

The DA is the culmination of 3 years of collaboration on LithiumBank's Alberta lithium brine assets that

includes detailed subsurface modelling (as announced

February 20, 2025

) and extensive DLE testing

(as announced

April 14, 2025

). The flexible commercialisation approach with 5,000 tpa DLE modules

significantly reduces the financial and technical risk in commercializing production of a battery grade

lithium carbonate.

Part of the development funding will be provided by the Alberta government through Emissions

Reduction Alberta ("

ERA

") for:

1

.

Re-entering and deepening a 2

nd

past producing, suspended, oil and gas well of the Leduc

formation (as announced

Nov, 20, 2025

);

2

.

Conducting concentration and conversion testing of 114,320 Liters (30,200 gallons) raw brine to a

battery grade lithium carbonate, and;

3

.

Completing a Feasibility Study.

The funding will refund LithiumBank up to 50% of each milestone up to a total of $3.9M.

During the DA Term, the Company agrees to collaborate exclusively with LESTS with respect to

proposed work contemplated by the DA, until the earlier of (i) such time as the Parties execute a

definitive agreement; or (ii) such time as the Parties abandon negotiations by mutual written consent.

The DA includes the terms for the licensing of LESTS's proven technology at Boardwalk for the full

processing flow sheet, from brine pretreatment all the way to a battery grade product that is transferrable.

The license fee is payable from the proceeds of production by way of a gross overriding royalty that

LithiumBank deems favourable to Boardwalk. The solution also uses significantly less water, energy and

fewer chemical reagents in comparison to other DLE-based offerings.

Key milestones for the partnership with LESTS include:

DLE Testing Eluate Treatability & Concentration Study, and Conversion Testing

Feasibility Study / DFS / Subsurface Modelling

Detailed Engineering and AACE Class 2 Estimate for Financial Investment Decision

Procurement

Phased Commercial Production Plant Construction

Commissioning, and Startup

Boardwalk's NI 43-101 resource estimate entitled "LithiumBank Resources Corp. Boardwalk NI 43-101

Technical Report" reported Indicated resources of 5.2 million tonnes LCE at 81.6 mg/L lithium within

11.96 cubic kilometres (km

3

) of brine and 2.8 million tonnes LCE inferred at 79 mg/L lithium within 6.56

km

3

of brine with an effective date of February 20, 2025 (as announced

Feb. 20, 2025

).

Figure 1. Map of Boardwalk Brine Hosted Mineral Licenses and NI 43-101 Resource Estimate

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

https://images.newsfilecorp.com/files/10140/278791_f6e3b10a1427cb78_001full.jpg

Notes

1: Mineral resources are not mineral reserves and do not have demonstrated economic viability. There is no guarantee that all or any part of the

mineral resource will ever be upgraded to a higher category. The estimate of mineral resources may be materially affected by geology, environment,

permitting, legal, title, taxation, socio-political, marketing, or other relevant issues.

2: The weights are reported in metric tonnes (1,000 kg or 2,204.6 lbs).

3: Tonnage numbers are rounded to the nearest 1,000 unit.

4: In a 'confined' aquifer (as reported herein), effective porosity is an appropriate parameter to use for the resource estimate.

5: The resource estimation was completed and reported using a cut-off of 50 mg/L Li.

6: To describe the resource in terms of industry standard, a conversion factor of 5.323 is used to convert elemental Li to Li2CO3, or Lithium

Carbonate Equivalent (LCE).

Qualified Person

The information that forms the basis for the scientific and technical information disclosed in this news

release was prepared and approved by Kevin Piepgrass, P.Geo, who is a Qualified Person (QP) for the

purposes of National Instrument 43-101. Mr Kevin Piepgrass consents and approves of the inclusion of

the data in the form and context in which it appears. Mr. Kevin Piepgrass is the Chief Operating Officer

for LithiumBank and is non-independent.

About LithiumBank Resources Corp.

LithiumBank Resources Corp. (TSXV: LBNK) (OTCQX: LBNKF) is a publicly traded lithium company

that is focused on developing its two flagship projects, Boardwalk and Park Place, in Western Canada.

These projects host some of the largest lithium brine resources in North America (Figure 1). The

Company holds 1,240,140 acres of brown-field brine hosted mineral licenses across three districts in

Alberta and Saskatchewan. The Company has pilot tested multiple mature Direct Lithium Extraction

("DLE") technologies and has signed a Development Agreement for the Boardwalk project. This

agreement includes binding DLE licensing terms with a Leading Energy Services and Technology

Supplier to provide a cost-effective and commercially viable end-to-end solution. The Company is now

working toward establishing commercial lithium production using a modular scale-up approach.

Contact:

Rob Shewchuk Director & CEO

[email protected]

(778) 987-9767

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.

Cautionary Statement Regarding Forward-Looking Statements

This release includes certain statements and information that may constitute forward-looking

information within the meaning of applicable Canadian securities laws. All statements in this news

release, other than statements of historical facts, including statements regarding future estimates,

plans, objectives, timing, assumptions or expectations of future performance, including without

limitation, statements regarding the Parties collaborating in developing the Boardwalk asset using

licensed modular DLE technology; the Company commissioning a Feasibility Study and the

anticipated timing thereof; the first phase of development involving two initial DLE modules capable of

10,000 tpa per annum LCE; the Company having a clear sight to commercial production on the

Boardwalk Project; the Company saving significant time and costs compared to alternative

development strategies; Boardwalk creating limited new surface disturbance and benefiting local

communities; The Leading Energy Technology Supplier's end to end DLE solution and modular

approach scaling up production by 5,000 tpa LCE increments with a capital intensity that is more

favourable than comparable brine projects in North America; the flexible commercialization approach

significantly reducing the financial and technical risk in commercializing production of a battery grade

lithium carbonate; Leading Energy Technology Supplier and the Company entering into definitive

agreements with respect to the DA; Leading Energy Technology Supplier's technology producing

high-purity lithium carbonate or hydroxide; and the Company accomplishing any of the key

milestones of the partnership with Leading Energy Technology Supplier

,

are forward-looking

statements and contain forward-looking information. Generally, forward-looking statements and

information can be identified by the use of forward-looking terminology such as "intends" or

"anticipates", or variations of such words and phrases or statements that certain actions, events or

results "may", "could", "should" or "would" or occur.

Forward-looking statements are based on certain material assumptions and analysis made by the

Company and the opinions and estimates of management as of the date of this press release,

including that the Parties will collaborate in developing the Boardwalk asset using licensed modular

DLE technology on the terms set out in the DA, or at all; that the Company will commission a

Feasibility Study that will be completed in 2026; that the first phase of development will involve two

initial DLE modules capable of 10,000 tpa per annum LCE; that the Company will have a clear sight

to commercial production on the Boardwalk Project; that the Company will save significant time and

costs compared to alternative development strategies; that Boardwalk will create limited new surface

disturbance and benefit local communities; that the Leading Energy Technology Supplier's

end to

end DLE solution and modular approach will scale up production by 5,000 tpa LCE increments with a

capital intensity that is more favourable than comparable brine projects in North America; that the

flexible commercialization approach will significantly reduce the financial and technical risk in

commercializing production of a battery grade lithium carbonate; that the Leading Energy Technology

Supplier

and the Company will enter into definitive agreements with respect to the DA; that the

Leading Energy Technology Supplier's technology produces high-purity lithium carbonate or

hydroxide; that the Company will accomplish the key milestones of the partnership with the Leading

Energy Technology Supplier; and that the Company will be able to raise the capital required in

connection with accomplishing the key milestones.

These forward-looking statements are subject to known and unknown risks, uncertainties and other

factors that may cause the actual results, level of activity, performance or achievements of the

Company to be materially different from those expressed or implied by such forward-looking

statements or forward-looking information. Important risks that may cause actual results to vary,

include, without limitation, the risk that the Parties will not collaborate in developing the Boardwalk

asset using licensed modular DLE technology on the terms set out in the DA, or at all; that the

Company will not commission a Feasibility Study that will be completed in 2026; that the first phase of

development will not be on the terms anticipated; that the Company will not have a clear sight to

commercial production on the Boardwalk Project; that the Company will not save significant time and

costs compared to alternative development strategies; that Boardwalk will create new surface

disruptions; that Boardwalk will not benefit local communities as anticipated, or at all; that the Leading

Energy Technology Supplier's end to end DLE solution and modular approach will not scale up

production as anticipated; that financial and technical risk will be reduced; that the Leading Energy

Technology Supplier and the Company will not enter into a definitive agreement; that the Leading

Energy Technology Supplier's technology will not produce high-purity lithium carbonate or hydroxide;

that the Company will not accomplish the key milestones of the partnership with the Leading Energy

Technology Supplier'; that North America's demand for lithium does not continue to grow; the

possibility that any future development results will not be consistent with the Company's expectations;

risks

related

to

commodity

price

and

foreign

exchange

rate

fluctuations; the

cyclical nature

of

the

industry

in

which

the

Company

operates;

risks

related

to

global

financial

markets, including the

trading price of the Company's shares and the Company's ability to raise capital may also result in

additional and unknown risks or liabilities to the Company.

Although management of the Company has attempted to identify important factors that could cause

actual results to differ materially from those contained in forward-looking statements or forward-looking

information, there may be other factors that cause results not to be as anticipated, estimated or

intended. There can be no assurance that such statements will prove to be accurate, as actual results

and future events could differ materially from those anticipated in such statements. Accordingly,

readers should not place undue reliance on forward-looking statements and forward-looking

information. Readers are cautioned that reliance on such information may not be appropriate for other

purposes. The Company does not undertake to update any forward-looking statement, forward-looking

information or financial outlook that are incorporated by reference herein, except in accordance with

applicable securities laws.

To view the source version of this press release, please visit

https://www.newsfilecorp.com/release/278791