Graphano Reports High-Grade Grab Sample Results Of Up To 26.5% Cg From Spring Exploration Program At Black Jack

(MENAFN- Newsfile Corp) Graphano Reports High-Grade Grab Sample Results of up to 26.5% Cg from Spring Exploration Program at Black Jack

June 04, 2026 3:01 AM EDT | Source: Graphano Energy Ltd.

Vancouver, British Columbia--(Newsfile Corp. - June 4, 2026) - Graphano Energy Ltd. (TSXV: GEL) (FSE: 97G0) (" Graphano " or the " Company ") is pleased to report high-grade graphitic carbon assay results from grab samples collected during the Company's spring exploration program at the newly identified Black Jack graphite showing, located approximately one kilometre northwest of the Company's Black Pearl graphite discovery in Québec.

A total of 28 grab samples collected from the exposed graphite-bearing horizon returned values ranging from 12.0% Cg to 26.5% Cg, with an average grade of 19.8% Cg. Twenty-five of the 28 samples returned grades greater than 15.0% Cg, and 15 samples returned grades of 20.0% Cg or higher.

Dr. Luisa Moreno, Chief Executive Officer of Graphano, commented: "These results confirm the presence of high-grade graphite mineralization at Black Jack and further strengthen our view that this new discovery is an important addition to the broader Black Pearl graphite trend. The consistency of the grab sample results across the exposed horizon is particularly encouraging, with all samples returning strong graphitic carbon values. While grab samples are selective by nature, the results provide a strong basis for the next phase of work, including mapping, stripping, and systematic channel sampling to better define the continuity, width, and scale of the graphite-bearing horizon."

The samples were collected from an exposed, visually continuous graphite-bearing horizon measuring approximately 100 metres long and up to 15 metres wide. Field observations indicate that the exposed zone represents a single, laterally continuous graphite horizon with homogeneous graphite mineralization. Systematic channel sampling will be required to confirm grade continuity across the exposed width and along strike. The new Black Jack graphite showing is situated along a cluster of airborne conductive anomalies having an indicated strike length of more than 1,100 metres. Further work is required to evaluate this larger scale potential and to determine how it correlates with the nearby Black Pearl graphite discovery.

Highlights

The 28 grab samples averaged 19.8% Cg. All 28 grab samples returned grades of 12.0% Cg or higher. 25 of 28 samples returned grades greater than 15.0% Cg. 15 of 28 samples returned grades of 20.0% Cg or higher. The exposed graphite-bearing horizon measures approximately 100 metres long and up to 15 metres wide. The newly discovered Black Jack graphite mineralization occurs along a cluster of airborne conductive anomalies having an indicated strike length of more than 1.1 kilometres.

Table 1: Black Jack - Prospecting Sample Assay Results

Black Jack - Prospecting Sample Results
Sample #	Northing (m)	Easting (m)	% Cg		Sample #	Northing (m)	Easting (m)	% Cg
931101	5155272	492474	18.8		931115	5155266	492427	18.9
931102	5155267	492469	20.6		931116	5155270	492426	19.8
931103	5155271	492457	20.4		931117	5155269	492434	21.4
931104	5155266	492444	19.4		931118	5155268	492435	19.2
931105	5155141	492931	12		931119	5155265	492439	20.1
931106	5155263	492445	14.9		931121	5155265	492437	16.6
931107	5155262	492446	22.8		931122	5155265	492436	22
931108	5155260	492443	22.3		931123	5155261	492447	19.3
931109	5155260	492442	26.5		931124	5155272	492443	20.1
931110	5155258	492438	20.5		931125	5155270	492446	19.5
931111	5155264	492436	19		931126	5155262	492411	23.8
931112	5155264	492430	20.7		931127	5155264	492398	20.3
931113	5155263	492428	21.4		931128	5155260	492394	12.4
931114	5155266	492427	17.8		931129	5155255	492408	23.5
Notes:	UTM Nad 83, Zone 18
	Average Grade of all 28 samples is 19.8% Cg
	The prospecting samples collected are grab samples which are selective by nature

Sampling and Analytical Method

The samples reported in this news release are grab samples collected from exposed graphite mineralization during the spring exploration program. Grab samples are selective in nature and are not necessarily representative of the average grade of the mineralized zone. All samples were stored and shipped using industry best practices and were delivered to Activation Laboratories (" ACTLABS "), Ancaster, Ontario, for sample preparation and analyses using laboratories' Code 4F-C Graphitic, analyzing C-Graphite (infrared) where the sample is subjected to a multistage furnace treatment to remove all forms of carbon with the exception of graphitic carbon; and C-Total (infrared). ACTLABS is an independent commercial, accredited ISO Certified Laboratory.

Qualified Person

The scientific and technical content disclosed in this press release has been reviewed and approved by Roger Dahn, B.Sc., P.Geo., a director of the Company and a "Qualified Person" as defined in National Instrument 43-101 – Standards of Disclosure for Mineral Projects.

About Graphano Energy

Graphano Energy Ltd. is an exploration and development company focused on evaluating, acquiring, and developing energy metals resources from exploration to production. Graphite is one of the most in-demand technology minerals that is required for a green and sustainable world. The Company's Lac Aux Bouleaux property, situated adjacent to Canada's only producing graphite mine, in Québec, Canada, has historically been an active area for natural graphite. With the demand for graphite growing in some of the most prominent and cutting-edge industries, such as lithium batteries in electric cars and other energy storage technologies, the Company is developing its project to meet the demands of the future.

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