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First Canadian Graphite Launches 2026 Lac Guéret South Exploration Program Campaign will systematically assess potentially new kilometre-scale graphite deposits at Lac Guéret South

Exploration Programs

First Canadian Graphite Launches 2026 Lac Guéret South

Exploration Program

Campaign will systematically assess potentially new kilometre-scale

graphite deposits at Lac Guéret South

MONTREAL, QC – June 16, 2026 – First Canadian Graphite Inc. (TSXV: FCI) (OTC: GRAPF)

("FC graphite" or the "Company") is finalizing the design of its inaugural field exploration

program following its recent corporate reorganization. This ambitious campaign is

engineered to evaluate p riority targets in the Company’s existing and expanded claim

package at the flagship Lac Guéret South Project, with an immediate focus on high-priority

electromagnetic (EM) targets identified during the heliborne geophysical survey flown earlier

this year (see press release dated May 20, 2026). The data gathered during this program will

establish the foundational framework for a subsequent diamond drilling campaign

scheduled for late fall 2026.

The upcoming exploration program will be executed in two distinct, sequential phases:

Phase I: Ground Truthing and Geological Mapping

The initial phase will focus on grassroots prospecting, sampling, and regional geological

mapping. Field crews equipped with Beep Mat instruments will systematically cross the

property to ground -truth, locate, and delineate the precise surface footprints o f the

conductors highlighted by the heliborne EM survey. While several of these anomalies have

previously been exposed and successfully tested —specifically within Zone 1 and Zone 6 —

numerous priority conductors remain entirely untested. In conjunction with Beep Mat

surveying, the geological team will map out the structural parameters of these horizons,

evaluating their surface widths, lateral extents, structural orientations, and dips. Grab

samples will be collected systematically across the target zones to provide a preliminary

assessment of graphite grades and regional distribution.

Phase II: Advanced Surface Work and Drill Target Selection

Phase II will focus exclusively on the high-potential anomalies prioritized during Phase I,

advancing them toward definitive drill targeting. This phase of work will entail mechanical

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stripping and continuous channel sampling across the most promising graphite -bearing

horizons, complemented by high-resolution structural mapping to optimize the upcoming

drill grid geometry. Execution of Phase II is subject to receiving an Authorization for impact-

causing exploration work (ATI), for which the regulatory application package is currently

being compiled for immediate submission.

Looking Ahead: Fall Drilling Program

The culmination of this season's fieldwork will feed directly into a comprehensive diamond

drilling program slated to commence in late fall. This drilling campaign will systematically

test both the down-dip depth and lateral continuity of the prioritized graphite horizons, with

the ultimate objective of expanding and defining the project's resource base to support

ongoing economic development.

John LaGourgue, FC graphite CEO stated, "We are highly encouraged by the scale and

quality of the conductive anomalies identified across our expanded Lac Guéret South

Project. With multiple kilometre -scale targets remaining largely untested, this program

positions us to unlock significant new graphite resources in one of Québec’s most

prospective districts. Combined with our existing high-grade Zone 1 resource, these results

reinforce our confidence in the district-scale potential of the project as we advance toward

resource expansion and long-term development."

Beyond the exploration results themselves, the Company believes one of the project’s most

compelling strategic advantages is its access to existing regional infrastructure —an

attribute that can materially influence development timelines, capital intensity, and long-

term project economics. The Lac Guéret South Project is positioned within reach of

established transportation and logistics corridors including all -season road access,

regional rail connectivity, deep-water shipping infrastructure through the Saguenay corridor,

and international air transport networks. Together, this infrastructure network provides the

potential to connect future production into North American and international markets within

approximately four hours of the project area. For many critical mineral projects globally,

comparable infrastructure access would typically require substantial capital investment

and years of development and permitting.

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Recent Site Visit to Québec’s North Shore and Baie-Comeau

As part of the ongoing advancement of the Lac Guéret South Project, the Company’s

management team recently completed a productive site visit to the North Shore region of

Québec, including key meetings and reconnaissance in Baie-Comeau.

The visit provided a valuable opportunity to assess the project’s strategic proximity to Baie-

Comeau’s port facilities, road infrastructure, and established mining support services. The

team engaged with local stakeholders, government representatives, and community

leaders in the Manicouagan and Côte-Nord regions, gaining important insights into regional

priorities and opportunities for collaboration.

Preliminary reconnaissance of accessible portions of the ~165 km² property further

reinforced the district -scale potential, particularly around the multiple kilometre -scale

conductive anomalies. These on-the -ground observations, combined with constructive

discussions during the Baie -Comeau stop, will directly inform the design of the upcoming

summer exploration program and support responsible, community-aligned development as

the Company advances toward resource expansion and contribution to North America’s

critical minerals supply chain.

Qualified Person

The technical information in this news release has been reviewed and approved by Antoine

Fournier, P.Geo., Vice President Exploration for FG graphite and a Qualified Person under

National Instrument 43-101 - Standards of Disclosure for Mineral Projects.

The Company has filed an NI 43 -101 Technical Report with a detailed Mineral Resource

Estimate for the Lac Guéret South Project (formerly known as the Berkwood Project)

completed by independent experts Edward Lyons (Tekhne Resources), Florent Baril

(Bumigeme), and Claude Duplessis (Goldminds Geoservices). For the full report and

updates visit https://FirstCanadianGraphite.com or under the Company’s profile at the

SEDAR website at https://SedarPlus.ca.

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About FC graphite

FC graphite is engaged in the exploration of critical minerals and is committed to advancing

its Lac Guéret South high -grade graphite property to support applications in energy

transition and advanced technologies.

The Lac Guéret South Project , formerly known as the Berkwood Project, borders Nouveau

Monde Graphite's Uatnan graphite project in the southwest Manicouagan reservoir area,

234 km north-northwest of Baie-Comeau, in the Côte-Nord administrative region of Québec

on the Nitassinan (ance stral territory) of the Pessamit Innu. Lac Guéret South features

surface-exposed graphite and a NI 43 -101 resource at Zone 1 containing: 1.76 million

tonnes indicated at 17% Cg and 1.53 million tonnes inferred at 16.4% Cg (NI 43-101

Technical Report Mineral Resource Estimate) . The property also features several other

zones with surface graphite samples, offering strong exploration potential. In early 2026,

the Company increased its land holdings to 167 km², establishing one of the most extensive

claim portfolios within the Lac Guéret Graphite District. With substantial exploration

opportunities remaining and total investments exceeding $10 million, FC graphite is actively

engaged in expanding its resources and advancing toward the completion of its Preliminary

Economic Assessmen t (PEA). The Company possesses sufficient funding to further

advance this project throughout 2026.

Pessamit Innu First Nation Engagement

FC graphite formally acknowledges that the Lac Guéret South Project is situated within

the Nitassinan (ancestral territory) of the Pessamit Innu First Nation. The Company

remains dedicated to cultivating respectful, transparent, and cooperative relationshi ps

with local Indigenous communities at every stage of the project's development.

On Behalf of the Board of Directors

First Canadian Graphite Inc.

Signed: “John LaGourgue”

John LaGourgue, CEO & Director

For more information, contact:

[email protected]

(604) 838-3376

https://firstcanadiangraphite.com/

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 News Release.