One of the Largest Identified Graphite Deposits Globally with 120.2 Mt Indicated at 10.27% Cg and 24.1 Mt Inferred at 9.88% Cg, Containing 14.7 Mt of In-Situ Graphite

Ottawa, Ontario - Newsfile Corp. - June 22, 2026 - Focus Graphite Inc. (TSXV: FMS) (OTCQB: FCSMF) (FSE: FKC0) ("Focus" or the "Company"), a Canadian developer of high-grade flake graphite deposits and advanced graphite materials for battery, defence, and industrial applications, is pleased to announce that it has filed the report on SEDAR+ for the upgraded mineral resource estimate ("MRE") on its 100%-owned Lac Tetepisca Project (the "Project") in Quebec. The Project lies within the Nitassinan (ancestral land) of the Pessamit Innu First Nation of Betsiamites, Quebec. The MRE was completed pursuant to the requirements of National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101"). Highlights

• One of the largest identified graphite deposits globally: This new mineral resource estimate includes 120.2 million tonnes ("Mt") of Indicated resource at 10.27% graphitic carbon ("Cg") and 24.1 Mt of Inferred resource at 9.88% Cg, containing an estimated 14.7 Mt of in-situ graphite (see table below for additional details regarding the calculation of the MRE and the average Cg grades for the Inferred Mineral Resources and Indicated Mineral Resources).
• High-Grade Mineral Resources. Estimates were calculated based on a conservative 3.5% Cg cut-off grade and US$1,200 per tonne average selling price for the flake concentrate.
• Significant expansion potential through step-out and infill drilling to extend the deposit to the southwest and at greater depths, plus drill testing of numerous other geophysical anomalies.
• Novel, low-cost AI enabled in situ graphite flake characterization technology expected to be incorporated into a future MOGC mineral resource update.
• Acid generation mitigation materials from the dolomitic marbles hanging wall are included in the resource shell. They could be used to mitigate acid generation from the tailings storage facility. Their acid buffering capacity is to be published in the upcoming months.
• There are no material changes in the updated report from the results disclosed on the Company's May 07, 2026 press release.

IOS Geosciences Inc. ("IOS"), a leading Quebec-based geological consulting firm was retained to produce a mineral resource estimate update and prepare a technical report (the "Technical Report"). The Technical Report is available on the Company's website and on the Company's SEDAR+ profile at http://www.sedarplus.ca. The MRE update was completed by IOS, using results from 150 drill holes totalling 26,095 metres, and including 2022 campaign results recently reported and totalling 9,628 metres from 44 drill holes. The MRE update for the Project is based on 150 inclined and sub-vertical diamond drill holes performed between 2014 and 2022 on the Manicouagan-Ouest Graphitic Corridor ("MOGC") and South-West MOGC ("SW-MOGC") graphite prospect, totalling of 26,095 metres. Focus discovered the MOGC prospect in July 2012 while conducting reconnaissance geological mapping, prospecting, and trenching on the Property. The MOGC is defined by a 2-kilometre linear Magnetic (MAG) and Electromagnetic (EM) anomaly that trends N035°. Drilling was conducted on a 1.5 km long segment of the MOGC following 300 m long drilling lines oriented N305° and spaced 100 m, 50 m, or 25 m apart.

Table 1: Mineral Resources (at 3.5% Cg Cut-Off) - MOGC, Lac Tetepisca Project
Mineral Resource Category	Tonnes (kt)	Graphitic Carbon (%)	In-Situ Graphite (kt)
Measured*	-	-	-
Indicated*	120,163	10.27	12,345
Total Measured and Indicated*	120,163	10.27	12,345
Inferred*	24,143	9.88	2,386

* See notes 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15 Notes

1. These mineral resources are not mineral reserves as they do not have demonstrated economic viability. The MRE follows current CIM Definition Standards (2014) and CIM MRMR Best Practice Guidelines (2019). A technical report supporting the MRE will be filed within 45 days in accordance with NI 43-101. The results are presented undiluted and are considered to have reasonable prospects for eventual economic extraction ("RPEEE").
2. The independent and qualified persons ("QPs") for the mineral resource estimate, as defined in NI 43-101, are Jean-Michel Dubé, P.Geo. from IOS Geosciences and Alexandre Burelle, P.Eng., from Evomine Consulting. The effective date is April 30th, 2026.
3. The estimate includes four (5) variably mineralized domains and one (1) dilution envelope modeled using LeapFrog Geo and interpolated using LeapFrog Edge.
4. 2.0 m composites were calculated within the mineralized zones...