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International Lithium Corp. Completes Maiden Drilling Program at Raleigh Lake Lithium Project, Ontario, Canada

Exploration Programs

NEWS RELEASE

International Lithium Corp. Completes Maiden Drilling Program at

Raleigh Lake Lithium Project, Ontario, Canada

Vancouver, B.C. April 19 , 2021 International Lithium Corp. (the “ Company” or “ ILC”) (TSX

Venture: ILC) is pleased to announce that the Company has completed a maiden diamond drilling

program on the Raleigh Lake Lithium project near Ignace, Ontario, Canada. A total of 1 ,504

metres of NQ core drilling were completed in eight holes to test the continuity of spodumene

bearing pegmatites and their associated lithium, tantalum and cesium mineralization down dip

and along strike from outcrop and previous operators’ drilling.

The royalty-free, 100-percent-owned Raleigh Lake project comprising a total of 3,027 hectares

hosts a number of outcropping pegmatite bodies. The recent drilling focused on what the

Company now refers to as Zone 1 (Figure 1), an area of approximately one square kilometre (100

hectares) that hosts Pegmatites 1 and 3. The two shallow dipping pegmatite dykes have been

mapped at surface with Pegmatite 1 exposed along strike for at least 300 metres and intersected

400 metres downdip by drilling conducted prior to ILC’s d rilling campaign. Seven of ILC’s eight

widely dispersed holes, covering an area approximately 600 x 300 metres, intersected pegmatite.

The core has been logged and cut with samples submitted for chemical analysis. Assay results

are expected by mid-May.

Logistics of the drill program were excellent as the project is road accessible and is just a short

distance from the Trans-Canada Highway. The Raleigh project is located less than 20 kilometres

directly west of the Township of Ignace, Ontario . It distinguishes itself from other lithium projects

in Canada by being very well situated near to major public infrastructure; the Trans -Canada

Highway, with direct access to Thunder Bay on Lake Superior, is less than six kilometres north of

the project as is the mainline of the Canadian Pacific Railway, natural gas pipelines, and the hydro

power line junction at Raleigh Lake. By having relatively easy access to public services coupled

with no need to spend significant sums of money on building new roads or electric power lines to

service the site nor buildings to house contractors , the Raleigh project posesses a substantial

advantage over more remote mining projects.

With the drilling taking place exclusively in Zone 1 , which is within one kilometr e of the historic

drilling, there are no results yet for Zones 2 to 5. These additional zones include claims acquired

by ILC in 2016 and 2018 and include some with surface pegmatite exposures. ILC intends to carry

out wider drilling in various phases on Zones 2 to 5 as targets are prioritized in these areas.

John Wisbey, Chairman and CEO of International Lithium Corp. commented:

“This was an encouraging drilling program for ILC with what appear to be good and solid results

in Raleigh Lake Zone 1 that build significantly on our confidence of the project’s potential. If the

725 Granville Street, Suite 400

Vancouver, British Columbia

V7Y 1G5, Canada

T: +1-604-449-6520

[email protected]

www.internationallithium.com

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chemical analysis received over the next few weeks is favourable, that may well be sufficient to

warrant follow-up with some preliminary economic analyses prior to further drilling in Zone 1. The

board also believes that investment in further drilling in Zones 2 to 5 is highly warranted and

remains hopeful, based on earlier geological analysis, that it could deliver even greater potential

than we are defining at Zone 1.”

Quality assurance/quality control procedures

International Lithium Corp. has implemented a rigorous quality assurance/quality control program

to ensure best practices in sampling and analysis of diamond drill core. All assays are performed

by Activation Laboratories Ltd. (ActLabs), with sample preparation and analysis carried out in their

full-service facility in Dryden, Ontario. Sample preparation involves crushing the entire sample to

80% passing 2 mm, riffle split 250g and pulverize to 95% passing 105 µm.

Primary analysis method: Peroxide (Total) Fusion, ICP-OES & ICP-MS with 55 elements including

Li (3ppm - 5%). Sodium peroxide fusion provides total metal recovery and is effective for the

decomposition of sulphides and refractory minerals.

Over limit analysis method: If Li >5%, then re-analyse by Assay Grade, Peroxide (Total) Fusion,

including Li from 0.01%.

The drill program was under the control of a Professional Geoscientist, registered with The

Association of Engineers and Geoscisntists of the Province of British Columbia.Th e Company

and its contractors carried out the program under full compliance with COVID-19 protocols based

on guidelines issued by the Provincial Health Officer (PHO) of British Columbia to ensure the

safety and health, for all personnel.

Qualified person

Patrick McLaughlin , P.Geo, a “Qualified Person” as defined by National Instrument 43 -101 –

Standards of Disclosure for Mineral Projects has reviewed and approved the technical information

in this press release.

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Figure 1: Total magnetic intensity image over the mineral claim outline divided into five Zones for

various staged exploration activities at the Raleigh Lake Lithium project.

About International Lithium Corp.

International Lithium Corp. believes that the ‘20s will be the decade of battery metals, at a time

that the world faces a major turning point in the energy market’s dependence on oil and gas and

in the governmental and public view of climate change. Our key mission in the new decade is to

make money for our shareholders from lithium and battery metals while at the same time helping

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to create a greener, cleaner planet. This includes optimizing the value of our existing projects in

Canada, Argentina and Ireland as well as finding, exploring and developing projects that have the

potential to become world class lithium and rare metal deposits. In addition, we have seen the

clear and growing wish by the USA and Canada to safeguard their supplies of critical batte ry

metals, and our Canadian properties are strategic in that respect.

A key goal in the new decade is to become a well funded company to turn our aspirations into

reality.

International Lithium Corp. has a significant portfolio of projects, strong management, and strong

partners. Partners include Ganfeng Lithium Co. Ltd., (“Ganfeng Lithium”) a leading China -based

lithium product manufacturer quoted on the Shenzhen and Hong Kong stock exchanges (A share

code: 002460, H share code: 1772) and Essential Metals Limited, quoted on the Australian Stock

exchange (ASX:ESS).

The Company’s primary strategic focus is now on the Mariana project in Argentina and on the

Raleigh Lake project in Canada.

The Company has a strategic stake in the Mariana lithium-potash brine project located within the

renowned South American “Lithium Belt” that is the host to the vast majority of global lithium

resources, reserves and production. The Mariana project strategically encompasses an entire

mineral rich evaporite basin, totalli ng 160 square kilometres, that ranks as one of the more

prospective salars or ‘salt lakes’ in the region. Current ownership of the project is through a joint

venture company, Litio Minera Argentina S. A., a private company registered in Argentina, now

owned 89.0% by Ganfeng Lithium and 11.0% by ILC (percentages are estimates and subject to

audit). In addition, ILC has an option to acquire a further 10% in the Mariana project through a

back-in right.

The Raleigh Lake project, now consisting of 3,027 hectares of adjoining mineral claims in Ontario,

is regarded by ILC management as ILC’s most significant project in Canada. It is 100% owned by

ILC, is not subject to any encumbrances, and is royalty free.

Complementing the Company’s lithium brine project at Mariana and rare metal pegmatite property

at Raleigh Lake, are interests in two other rare metal pegmatite properties in Ontario, Canada

known as the Mavis Lake and Forgan Lake projects, and the Avalonia project in Ireland, which

encompasses an extensive 50-km-long pegmatite belt.

The ownership of the Mavis Lake project is now 51% Essential Metals Limited (ASX: ESS, “ESS””)

and 49% ILC. In addition, ILC owns a 1.5% NSR on Mavis Lake. ESS has an option to earn an

additional 29% by sole -funding a further CAD $8.5 million expenditures of exploration activities,

at which time the ownership will be 80% ESS and 20% ILC.

The Forgan Lake project will, upon Ultra Resources Inc. meeting its contractual requirements

pursuant to its agreement with ILC, become 100% owned by Ultra Resources (TSXV: ULT), and

ILC will retain a 1.5% NSR on Forgan Lake.

The ownership of the Avalonia project is currently 55 % Ganfeng Lithium and 45% ILC. Ganfeng

Lithium has an option to earn an additional 24% by either incurring CAD $10 million expenditures

on exploration activities or delivering a positive feasibility study on the project, at which time the

ownership will be 79% Ganfeng Lithium and 21% ILC.

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With the increasing demand for high tech rechargeable batteries used in electric vehicles and

electrical storage as well as portable electronics, lithium has been designated “the new oil”, and

is a key part of a “green te ch” sustainable economy. By positioning itself with solid strategic

partners and projects with significant resource potential, ILC aims to be one of the lithium and

battery metals resource developers of choice for investors and to continue to build value f or its

shareholders in the ‘20s, the decade of battery metals.

On behalf of the Company,

John Wisbey

Chairman and CEO

www.internationallithium.com

For further information concerning this news release please contact +1 604-449-6520

Neither 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 Information

Except for statements of historical fact, this news release contains certain “forward -looking

information” within the meaning of applicable securities law. Forward -looking information or

forward-looking statements in this or other news releases may include: the effect of results of the

preliminary economic assessment of the Mariana Joint Venture Project, timing of publication of

the PEA technical report, anticipated production rates, the timing and /or anticipated results of

drilling on the Raleigh Lake or Mavis Lake projects, the expectation of feasibility studies, lithium

recoveries, modeling of capital and operating costs, results of studies utilizing membrane

technology at the Mariana Project, budgeted expenditures and planned exploration wor k on the

Avalonia J oint Venture, satisfactory completion of the sale of mineral rights at Forgan Lake,

satisfactory completion of the purchase of additional mineral rights at Raleigh Lake, increased

value of shareholder investments, and continued agreement between the Company and Jiangxi

Ganfeng Lithium Co. Ltd. regarding the Company’s percentage interest in the Mariana project.

Such forward-looking information is based on a number of assumptions and subject to a variety

of risks and uncertainties, includin g but not limited to those discussed in the sections entitled

“Risks” and “Forward-Looking Statements” in the interim and annual Management’s Discussion

and Analysis which are available at www.sedar.com. While management believes that the

assumptions made are reasonable, there can be no assurance that forward -looking statements

will prove to be accurate . Should one or more of the risks, uncertainties or other factors

materialize, or should underlying assumptions prove incorrect, actual results may vary materially

from those described in forward -looking information. Forward-looking information herein, and all

subsequent written and oral forward -looking information are based on expectations, estimates

and opinions of management on the dates they are made that, while considered reasonable by

the Company as of the time of such statements, are subject to significant business, economic and

competitive uncertainties and contingencies. These estimates and assumptions may prove to be

incorrect and are expressly qualified in their entirety by this cautionary statement. Except as

required by law, the Company assumes no obligation to update forward -looking information

should circumstances or management’s estimates or opinions change.