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QIMC Reports 10.77% Hydrogen Mud-Gas Reading at West-Advocate - Five Stacked %-Level Readings in a 69-Metre Methane-Free Hydrogen-Rich Interval in Hole DDH-26-03, West Advocate, Nova Scotia

QIMC Reports 10.77% Hydrogen Mud-Gas

Reading at West-Advocate - Five Stacked %-

Level Readings in a 69-Metre Methane-Free

Hydrogen-Rich Interval in Hole DDH-26-03,

West Advocate, Nova Scotia

102 IsoJar mud samples return peak 10.77% H

at 848 m, five readings ≥5% H

in the 779-848 m

interval, three readings ≥7% in a 33-metre sub-interval (815-848 m); methane and CO2 at or

below detection

Montréal, Québec--(Newsfile Corp. - May 20, 2026) - Québec Innovative Materials Corp. (CSE: QIMC)

(OTCQB: QIMCF) (FSE: 7FJ) ("QIMC" or the "Company") is pleased to report mud-gas results from

DDH-26-03 at its West-Advocate natural hydrogen exploration project in Cumberland County, Nova

Scotia.

QIMC-26-03 returned the highest H

mud-gas readings recorded to date on the West-

Advocate property

and represents the Company's first lateral step-out test of the H

system, drilled

approximately 2.5 kilometres along the Cobequid-Chedabucto structural corridor from previously

reported DDH-26-01 and DDH-26-02. The intersection of substantially higher-grade percent-level H

readings 2.5 km from the prior drill locations supports the interpretation that the West-Advocate

hydrogen system may exhibit lateral continuity along the structural corridor rather than being confined to a

localized anomaly. The hole was completed to a final logged depth of 932 metres. A total of 102 IsoJar

headspace mud-gas samples were collected over the 473-932 m interval. The dataset returns a peak

reading of 10.77% H

at 848 m — the highest mud-gas H

value recorded to date on the West-

Advocate property — along with five stacked percent-level readings ≥5% H

in a 69-metre interval

(5.10% at 779 m, 5.10% at 806 m, 8.87% at 815 m, 7.29% at 818 m, and 10.77% at 848 m), three

readings ≥7% in a tighter 33-metre sub-interval (815-848 m), and a separate elevated reading of 3.42%

at 668 m. All five ≥5% H

readings are hosted within vuggy, magnetite and pyrrhotite-bearing polymictic

conglomerate. Co-collected gas samples returned methane (CH

) and carbon dioxide (CO2) at or

below detection limit across the entire anomaly interval, a gas signature interpreted by the Company as

consistent with a natural-hydrogen system and not typical of conventional thermogenic hydrocarbon gas

systems.

Highlights

Highest H

mud-gas readings recorded to date on the West-Advocate property:

10.77% H

at

848 m

, with five stacked readings ≥5% H

in a 69-metre interval (5.10% at 779 m, 5.10% at 806

m, 8.87% at 815 m, 7.29% at 818 m, 10.77% at 848 m) — all hosted within vuggy, fractured

polymictic conglomerate. An additional discrete elevated reading of 3.42% H

was recorded at

668 m.

Lateral step-out result:

Hole 3 drilled approximately 2.5 km along the Cobequid-Chedabucto

structural corridor from DDH-26-01 and DDH-26-02

, and returned percent-level H

readings

substantially higher than the peak water headspace value previously reported from DDH-26-02

(8,249 ppmV / 0.82% at 434 m, March 19, 2026). The result supports the interpretation that the H

system may extend laterally along the structural corridor rather than a localized anomaly.

Nearly continuous H

mud-gas anomaly from 473 m to 932 m:

of 102 IsoJar mud samples, 26

readings exceed 1% H

, 7 exceed 3%, 5 exceed 5%, 3 exceed 7%, and 1 exceeds 10% by

volume

. The full-dataset calibration replaces the prior set of field-detector readings (which

included multiple sensor over-range events) with quantified concentrations across the entire profile.

Co-collected gas samples returned

CH

at or below detection (lower than 0.1%) and CO2 at

detection limit

across the anomaly interval — a gas signature interpreted by the Company as

consistent with a natural-hydrogen system and not consistent with thermogenic gas.

Mud-gas readings were acquired during drilling using the Company's RKI Eagle 2 instruments

(initial LEL-range sensor through 485 m, upgraded thermal-conductivity sensor 0-100% v/v for the

balance of the hole), with IsoJar headspace samples co-collected at

3 m intervals.

Hole completed to

932 m TD

and approximately 100% recovery throughout.

Lithology is consistent with the targeted

fault-and-fracture-controlled architecture

of the

R2G2™ exploration model: cataclastic siltstones with repeated mud-seam fault gouges in the

upper hole, transitioning to vuggy, magnetite and sulphide-bearing polymictic conglomerate at

depth with characteristic "poker-chip" fracture style perpendicular to core axis — the same interval

hosting the percent-level H

readings.

All field readings have been

independently verified by Prof. Marc Richer-Laflèche, P.Geo., of

INRS

, who worked on the R2G2™ model and is the independent scientific analyst for the 2026

West-Advocate programme. Independent commentary appears below.

CEO Commentary

John Karagiannidis, Chief Executive Officer of QIMC, commented:

"

DDH-26-03

delivers QIMC's

highest H

mud-gas readings to date on the West-Advocate property, a 10.77% H

reading at 848

metres, with five stacked percent-level readings between 5.10% and 10.77% in a 69-metre interval, and

three readings above 7% in just 33 metres. DDH-26-03 was a deliberate 2.5-kilometre lateral step-out

along the Cobequid-Chedabucto structural corridor from Holes DDH-26-01 and DDH-26-02; recording

substantially higher concentrations 2.5 km from the prior drill locations suggests this is a structurally

extensive hydrogen-bearing system rather than a localized anomaly. The double-digit peak is the

headline number, but the more important findings, in our view, are the apparent lateral continuity

observed over a 2.5-kilometre scale and the near absence of methane and CO2 across the entire

anomaly interval, a gas signature that we interpret as consistent with a natural-hydrogen system rather

than a thermogenic gas pocket."

Selected H

Mud-Gas Field Readings - QIMC DDH-26-03

Depth (m)

H

reading

Host Lithology

Status / Instrument

668

3.42%

Interbedded sandstone / argillite

Discrete elevated zone above main %-level cluster

779

5.10%

Polymictic conglomerate (upper)

First reading ≥5% in main cluster

806

5.10%

Vuggy polymictic conglomerate

815

8.87%

Vuggy polymictic conglomerate

818

7.29%

Vuggy polymictic conglomerate

830

3.39%

Vuggy polymictic conglomerate

Intermediate reading between %-level peaks

848

10.77%

Vuggy, pyrrhotite-bearing polymictic conglomerate

Peak value - highest H

mud-gas reading recorded to

date on the West-Advocate property

Table shows the seven readings ≥3% H

from the 102-sample IsoJar dataset covering 473-932 m. The five ≥5% H

readings (highlighted) sit

within a 69-metre interval (779-848 m) hosted in vuggy polymictic conglomerate; the two 3-5% readings (668 m and 830 m) are intermediate

elevated readings.

Figure 1 - H

Profile vs. Depth, QIMC DDH-26-03

Figure 1. Depth-concentration profile of all 102 IsoJar H

mud-gas samples from QIMC-26-03. Red stars are the five readings ≥5% H

in the main

%-level interval (779-848 m): 5.10% at 779 m, 5.10% at 806 m, 8.87% at 815 m, 7.29% at 818 m, and 10.77% at 848 m. Orange diamonds are the

two readings between 3% and 5% H

(3.42% at 668 m and 3.39% at 830 m). Blue dots are all remaining readings below 3% H

. The shaded zone

marks the main %-level interval hosted within vuggy polymictic conglomerate. Dotted vertical lines mark the LEL of H

in air (4% v/v) and 10% v/v.

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

https://images.newsfilecorp.com/files/7968/298155_621df44934bcbb15_001full.jpg

Gas Signature — Consistent with Natural / "White" Hydrogen

Across the 102 IsoJar samples collected from the 473-932 m interval, co-measured methane (CH

)

returned at or below detection limit (maximum 0.1%) and carbon dioxide (CO2) returned at or below

detection throughout. The presence of percent-level H

(up to 10.77% by volume) in a gas mixture

demonstrably free of methane and CO2 is consistent with an abiogenic hydrogen interpretation, typical

of crustal water-rock reactions such as serpentinization of ultramafic protoliths and radiolysis of

formation water — and is not typically characteristic of conventional thermogenic hydrocarbon gas

systems, which would be dominated by methane and accompanying light hydrocarbons. This signature

distinguishes the West-Advocate gas system from conventional petroleum-system gases and supports

the structural-source interpretation underpinning the R2G2™ targeting model.

Geological Context

Hole DDH-26-03 was sited within the Cobequid-Chedabucto Fault Zone ("CCFZ"), a >300 km crustal-

scale shear corridor inherited from the Avalon-Meguma terrane suture and the central structural element

of the Company's Reactivated Rift and Graben Geostructure (R2G2™) exploration model. The model

targets fault-and-fracture systems interpreted to operate as advective pathways for deep-sourced

hydrogen migration and shallow trapping in fracture-porous sedimentary facies.

DDH-26-03 was drilled approximately 2.5 kilometres along the structural corridor from previously

reported Holes DDH-26-01 and DDH-26-02, and represents the Company's first lateral step-out test of

the West-Advocate H

system. The geometry was designed to test whether the H

mud-gas response

observed in Holes 1 and 2 extends laterally along the corridor or is confined to a localized structural

compartment. The intersection in DDH-26-03 of percent-level H

readings to 10.77% substantially above

previously reported Hole 2 headspace readings from DDH-26-02 (0.82% at 434 m, reported March 19,

2026) — supports the interpretation that West-Advocate may represent a structurally-controlled natural-

hydrogen system exhibiting potential lateral continuity at the 2.5-km scale rather than as a localized

anomaly. Hole 3 also extends the depth penetration of the property by approximately 220 metres relative

to DDH-26-01.

Logged lithology in DDH-26-03 supports the targeting thesis. The upper section (3-49.7 m) is a fault-

disrupted fine-grained siltstone with repeated mud-seam fault gouges and brecciated intervals. The mid-

hole interval is a layered siltstone-argillite-sandstone package punctuated by sheared fault breccias,

including a discrete 3.42% H

reading at 668 m above the main %-level cluster. From approximately

780 m to total depth, the hole transitions into a magnetic, pyrrhotite-bearing polymictic conglomerate

exhibiting widespread vuggy texture and "poker-chip" fracturing perpendicular to core axis — a fabric

consistent with structurally-enhanced secondary porosity. All five readings ≥5% H

(5.10% at 779 m,

5.10% at 806 m, 8.87% at 815 m, 7.29% at 818 m, and 10.77% at 848 m) were recorded within this

conglomerate package, clustered in a 69-metre interval that the Company interprets as a hydrogen-

bearing interval. Three of these readings (815, 818 and 848 m) cluster within a tighter 33-metre sub-

interval, all returning ≥7% H

.

Independent Scientific Commentary — Prof. Marc Richer-Laflèche, P.Geo. (INRS)

Data from

drill hole DDH-26-03

provide key insights for natural hydrogen exploration in the West

Advocate area (Nova Scotia). The borehole reveals high H

concentrations (ppmV) in both water and

drilling-mud headspace, with values that increase with depth and toward the magnetic anomalies

mapped on the Government of Nova Scotia's Cobequid Highlands aeromagnetic survey. The strongest

hydrogen anomalies occur within variably fractured conglomerates of the Horton Group (

Fig. 2b

). These

units display elevated magnetic susceptibility, consistent with the presence of magnetite fragments and,

locally, pyrrhotite within the fractured conglomeratic matrix. Spatially, a clear correlation emerges

between magnetite-rich conglomerates and the highest H

concentrations measured in

DDH-26-03

(

Fig. 2c

). This association may reflect a genetic link between hydrogen and magnetite, potentially

through redox reactions involving Fe(II)-Fe(III) mineral phases, and/or a connection to deep magmatic

sources responsible for the observed metasomatism.

The geological context of this sector of the Cobequid Highlands suggests a complex interplay between a

major deformation corridors of the Cobequid-Chedabucto Fault Zone (CCFZ), a permeable, competent,

fractured sedimentary rocks, and magnetite- and sulphide-bearing conglomerates within a sedimento-

plutonic environment. Together, these features point to the possibility of a fossil hydrothermal system with

affinities to intrusion-related IOCG-type mineralization. Notably, several Late Carboniferous IOCG-like

systems are already recognized along the CCFZ in Nova Scotia, including the Londonderry and South

Manchester iron deposits, as well as the Copper Lake and Mount Thom (Cu-Au-Co) occurrences

(Belperio, 2007; MacHattie & O'Reilly, 2008).

Figure 2.

(

A

) Variability of H

concentrations (ppmV) measured in the water-headspace samples from drill hole DDH-26-03. (

B

) Rock Quality

Designation (RQD, %) measured along the drill core. (

C

) Magnetic susceptibility values (SI × 10

³) obtained from systematic core measurements.

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

https://images.newsfilecorp.com/files/7968/298155_621df44934bcbb15_002full.jpg

Next Steps

Hole 2 (DDH-26-02) deepening to

900 m - active

Following the demonstration of percent-level H

readings in the 806-848 m depth window of DDH-26-03,

the Company has remobilized the drill rig to DDH-26-02, which had previously been paused at

approximately 500 m due to spring thaw conditions, with the Company noting at that time that elevated

H

at hole end indicated the system remained open at depth. Hole 2 is now being extended to a planned

final depth of approximately 900 metres in order to test the same depth window that returned the

percent-level readings in QIMC-26-03, at the Hole 2 collar location.

Mud-gas sampling on the deepened section of Hole 2 has already commenced

, using the same

upgraded RKI Eagle 2 (TCD, 0-100% v/v H

) instrument, IsoJar mud sampling at approximately 3-metre

intervals, and field QA/QC protocols applied to DDH26-03. The Company anticipates reporting results

from the deepened section of Hole 2 in a subsequent news release once drilling and sampling are

complete.

Bennett Hill (East Advocate) — Holes 4 and 5 next,

12.5 km along the Cobequid Fault Zone

The Company's next two boreholes of the 2026 exploration programme — referred to here as DDH-26-

04 and DDH-26-05, and constituting the first two holes of the separately-permitted Bennett Hill Phase 1

three-hole programme, will be drilled at the Bennett Hill Project in the East Advocate area, located

approximately 12.5 km along the Cobequid Fault Zone from the QIMC-26-01 / -02 / -03 cluster at West-

Advocate. Drill targets at Bennett Hill were defined through the Company's 2025 soil-gas campaign,

which delineated a nearly continuous 4-km anomalous line along Bennett Hill Road with mean H

of 623

ppm and a peak of 2,247 ppm (47 samples; reported September 3, 2025).

In parallel, an expanded soil-gas field programme has commenced in the extension of the

Bennett Hill area

, building on the methodology and results of the 2025 campaign. The current

programme extends the surveyed footprint farther along the Cobequid Fault corridor and is designed to

refine drill-target definition. The percent-level H

readings recorded at depth in QIMC-26-03, within the

structural setting independently predicted by surface soil-gas and structural mapping,

are interpreted by

the Company as field-scale support for the relationship and repeatability between surface soil-gas

anomalies and subsurface hydrogen accumulations, providing preliminary support for the targeting

workflow being applied to Bennett Hill.

Programme outlook beyond Bennett Hill

Following completion of DDH-26-02 deepening, Bennett Hill DDH-26-04 and DDH-26-05, and the INRS

analyses for QIMC-26-03, the Company will integrate the combined dataset — surface soil-gas,

structural mapping, three West-Advocate boreholes and the forthcoming two Bennett Hill boreholes to

prioritize subsequent drilling targets. QIMC continues to advance permitting and technical review for the

Little Forks and SpringHill areas as the next priority within its district-scale Nova Scotia natural-hydrogen

exploration strategy.

Community Engagement and Community Liaison Committee

QIMC sincerely thanks the residents and community members who attended the well-attended

community open house held in West Advocate on May 11, 2026, and acknowledges the constructive

discussion and feedback received on that occasion. The Company values the time, perspectives and

questions shared by attendees.

As part of the Company's ongoing community engagement strategy, which was already announced,

QIMC is proceeding with the establishment of a Community Liaison Committee to provide a structured,

advisory forum for transparent two-way communication, community feedback, and constructive dialogue

related to the Company's exploration activities in the area. The perspectives shared by community

members at the May 11 open house will help inform the Committee's structure, composition, and

operating priorities as it is established. QIMC remains committed to transparent, two-way

communication with the Advocate community as exploration work continues at West Advocate, Bennett

Hill and across the Company's district-scale Nova Scotia natural-hydrogen programme.

About QIMC

Québec Innovative Materials Corp. is a North American exploration and development company

advancing a portfolio of natural hydrogen and critical mineral projects. The Company is advancing its

district-scale hydrogen exploration model across Québec, Ontario, Nova Scotia and Minnesota,

leveraging its proprietary R2G2™ framework.

QIMC is committed to responsible exploration, technical innovation and sustainable development, with

the objective of supporting clean energy and decarbonization initiatives.

For Further Information:

QUÉBEC INNOVATIVE MATERIALS CORP.

John Karagiannidis

President & Chief Executive Officer

Email:

[email protected]

Tel: +1 514-726-7058

Disclaimer

Neither the Canadian Securities Exchange nor its Regulation Services Provider accepts

responsibility for the adequacy or accuracy of this release.

Forward-Looking Statements

This news release contains "forward-looking information" and "forward-looking statements" within the

meaning of applicable Canadian securities legislation. Forward-looking statements include, without

limitation, statements regarding the interpretation of drill results, the expected timing and outcome of

laboratory analyses, the geological model underpinning the West-Advocate project, the inferred origin

(abiogenic / thermogenic) of the gas reported herein, the inferred lateral continuity of the H

system

across the structural corridor, plans for additional drilling, and the Company's exploration and

business strategy. These statements are based on assumptions and expectations that QIMC believes

are reasonable as of the date hereof, but they are subject to known and unknown risks and

uncertainties — including but not limited to commodity-price volatility, exploration risk, the risk that

laboratory results may not confirm field readings, regulatory and permitting risk, financing risk, and

general market and operational conditions — which could cause actual results to differ materially.

Readers are cautioned not to place undue reliance on forward-looking statements. The Company

undertakes no obligation to update forward-looking statements except as required by law.

Mud-gas readings reported in this news release are based on co-collected IsoJar headspace samples

taken at approximately 3-metre intervals during drilling of DDH-26-03 and subsequently calibrated by

Prof. Marc Richer-Laflèche, P.Geo. of INRS against a higher-precision laboratory reference

instrument. The full-dataset calibration was applied to all 102 IsoJar samples and replaces the prior

set of in-field detector readings (which included multiple sensor over-range events) as the reported

values throughout this news release. These measurements are indicative of the presence of gas-

bearing intervals encountered during drilling but should not be taken as representative of in-situ

reservoir gas composition, gas-in-place volumes, sustained-rate flow potential, or any commercial-

quantity hydrogen resource. No flow testing has been conducted. References to "highest H

mud-gas

readings to date" and "peak 10.77% H

" are made with reference to the Company's own historical

record on the West-Advocate property and do not imply comparison to any third-party project or

dataset. All values reported are INRS-calibrated by Prof. Marc Richer-Laflèche, P.Geo. against a

higher-precision laboratory reference. H

values are field mud-gas concentrations and are indicative

of gas-bearing intervals encountered during drilling; they are not equivalent to reservoir composition

at in-situ conditions. The Company has not completed any economic evaluation, resource estimate,

or commercial flow assessment for the West-Advocate project.

Mud-gas readings during drilling were acquired at the rig's gas-trap return line using RKI Instruments

Eagle 2 portable H2 and Ga5000 multi-gas detectors paired with IsoJar headspace samples collected

at approximately 3-metre intervals over the 473-932 m interval. The initial detector unit deployed at

spud was configured with an LEL-range H

sensor (calibrated full-scale response equivalent to

approximately 4% H

by volume / 100% LEL).

Calibration is performed using aluminum foil bags filled with certified gas standards because this

method reproduces the exact sampling conditions used during the routine measurements. By

introducing the calibration gas through the same recirculation pathway as our field samples, we

ensure that the instrument accounts for any effects related to flow rate, tubing, bag material or internal

dilution. This approach provides a more representative and reliable calibration, improves quantitative

accuracy, and ensures that the GA5000 responds consistently to both calibration gases and real

samples. Bump tests were carried out and compiled for all working shifts in the mobile laboratory.

Analytical blanks (atmospheric air) were made to check the proper functioning of the detectors.

At 485 m, that sensor recorded the first sustained over-range condition of the hole. To preserve

quantitative data integrity for the balance of the hole, the Company procured and deployed a second

Eagle 2 unit fitted with a thermal-conductivity (TCD) H

sensor calibrated 0-100% by volume, used for

the remainder of DDH-26-03 under standard field QA/QC protocols including pre-shift calibration

against certified H

-in-N

span gas. IsoJar mud samples were collected for laboratory verification at

INRS.

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

https://www.newsfilecorp.com/release/298155