Montreal, Quebec--(Newsfile Corp. - December 3, 2025) - Québec Innovative Materials Corp. (CSE: QIMC) (OTCQB: QIMCF) (FSE: 7FJ) ("QIMC" or the "Company") is pleased to announce a significant expansion of its Phase 1 winter natural hydrogen drilling program in the Advocate–Cumberland Basin corridor of Nova Scotia. Supported by major geophysical advances from the Institut National de la Recherche Scientifique ("INRS"), QIMC will now undertake as a 1^st phase more than 5,000 metres of drilling during the winter season marking the Company's largest hydrogen-focused drill program to date.

Over recent months, Professor Marc Richer-Laflèche and the INRS geoscience team have substantially completed detailed gravimetry, tomography, LiDAR structural mapping, and integrated modeling, significantly refining the structural interpretation of the Basin. These advances have identified new priority drill targets and improved subsurface fault-mapping resolution, enabling QIMC to expand and optimize its Phase 1 drilling.

"As the first mover and pioneer of natural hydrogen exploration in Nova Scotia, QIMC continues to advance the science and set the pace for the industry," said John Karagiannidis, President & CEO of QIMC. "The geophysical advances delivered by INRS—integrating gravimetry, tomography, and LiDAR—have greatly strengthened our confidence in the subsurface model. As a result, we are expanding our Phase 1 winter drilling program to over 5,000 metres, reinforcing QIMC's position as the leading technical operator in the Advocate corridor at a time when regional and global interest in natural hydrogen is accelerating."

Houston Reuters Energy Live Conference – QIMC Presence

QIMC is also pleased to announce that it will be attending the Reuters Energy Live Conference in Houston on December 8th and 9th, where the Company will host a dedicated booth within the conference's hydrogen and emerging-energy section. As the first mover in natural hydrogen exploration in North America, QIMC's presence at this premier global energy event will allow the Company to showcase its technical leadership, engage directly with international industry participants, and highlight QIMC's multi-jurisdiction natural hydrogen portfolio across Nova Scotia, Québec, Ontario, and Minnesota to a global audience.

Sale of River Valley Silica project

QIMC is also pleased to announce it has executed a definitive agreement to sell its 100% interest in the River Valley Silica Project—a high-purity quartz property located approximately 65 km northeast of Sudbury, Ontario—to Sila Mining Corp. QIMC continues to retain 100% ownership of its high-grade Charlevoix Silica Project in Québec.

Under the terms of the agreement, QIMC will receive:

• 6,000,000 common shares of Sila Mining Corp. (deemed price: C$0.20 per share)

• Cash consideration of up to C$500,000

• A 2% gross-sales royalty on all silica products produced from the project

• The right to nominate one director to Sila's Board of Directors

Closing of the transaction is expected on or before January 16, 2026, subject to customary conditions and regulatory approvals. Sila currently has approximately 18 million shares outstanding, of which QIMC holds 6 million, providing QIMC with meaningful equity exposure as well as ongoing role as advisor as the project advances.

Sila is also completing a concurrent $1 million financing at $0.20 per share, with participation from insiders and management, underscoring their confidence in the growth potential of the River Valley high-purity silica asset.

Strategic Context: River Valley as a High-Purity Silica (HPQ) Growth and Consolidator Platform

The transaction ensures the River Valley asset will continue advancing under a dedicated, technically focused development strategy. Sila is positioning River Valley to become a foundational North American supplier and consolidator of high-purity silica (HPQ) projects—a critical material for:

• Semiconductors (silicon wafers)

• Solar photovoltaics (polysilicon feedstock)

• Advanced glass, optics, and electronics

• Silicon-enhanced battery anodes

Historical results confirm high-grade quartz averaging 98.74% SiO₂, placing River Valley within the range suitable for cost-effective upgrading into HPQ and ultra-HPQ products. Given that global HPQ supply is highly concentrated among a small number of producers, River Valley represents a strategic, scalable, and secure domestic alternative aligned with Canadian and U.S. critical-minerals policies.

River Valley Resource Expansion Strategy

Historical resource parameters outline:

• Quartz volume: 442,000 m³

• Tonnage: 1.06 Mt

• Purity: 98.74% SiO₂

This represents only the near-surface portion of the system. Geological indicators suggest strong potential for expansion at depth and along strike, which Sila is addressing through a staged 12-hole drilling program designed to:

• Establish mineralized continuity

• Validate structural controls

• Identify expansion zones

Next Steps & Critical metals consolidator Roadmap for Sila

Over the next 12-18 months, Sila plans to:

1. Execute and expand the staged drilling program

2. Initiate metallurgical testing to define pathways to HPQ and ultra-HPQ

3. Engage semiconductor, solar, battery, and advanced-materials partners

4. Advance River Valley as a cornerstone critical-minerals asset

"This transaction crystallizes significant value for QIMC while giving our shareholders exposure to one of the most strategically important silica assets in Canada," added Karagiannidis. "Sila's integrated technical approach and plans to further act as the consolidator in the critical minerals space, combined with our advisory involvement, ensures River Valley continues advancing rapidly."

About Québec Innovative Materials Corp. (QIMC)

Quebec Innovative Materials Corp. (CSE: QIMC) (OTCQB: QIMCF) (FSE: 7FJ) is a mineral exploration and development company dedicated to exploring and harnessing the potential of North America's abundant resources. With properties in Ontario, Quebec, Nova Scotia and Minnesota (US), QIMC is focused on specializing in the exploration of white (natural) hydrogen and high-grade silica deposits. QIMC is committed to sustainable practices and innovation. With a focus on environmental stewardship and cutting-edge extraction technology, we aim to unlock the full potential of these materials to drive forward clean energy solutions to power the AI and carbon-neutral economy and contribute to a more sustainable future.

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is defined in the CSE policies) accepts responsibility for the adequacy or accuracy of this news release and has neither approved nor disapproved the contents of this news release.

Forward-Looking Statements
This news release contains statements that constitute "forward-looking statements". Such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause Québec Innovative Materials' actual results, performance or achievements, or developments in the industry to differ materially from the anticipated results, performance or achievements expressed or implied by such forward-looking statements. Forward-looking statements are statements that are not historical facts and are generally, but not always, identified by the words "expects," "plans," "anticipates," "believes," "intends," "estimates," "projects," "potential" and similar expressions, or that events or conditions "will," "would," "may," "could" or "should" occur.

Although Québec Innovative Materials believes the forward-looking information contained in this news release is reasonable based on information available on the date hereof, by their nature, forward-looking statements involve assumptions, known and unknown risks, uncertainties and other factors which may cause our actual results, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements.

Examples of such assumptions, risks and uncertainties include, without limitation, assumptions, risks and uncertainties associated with general economic conditions in Canada and abroad; adverse industry events; future legislative and regulatory developments in the natural resources sector, in particular as regards the regulation of white (natural) hydrogen exploration, development and exploitation; the Company's ability to access sufficient capital from internal and external sources, and/or inability to access sufficient capital on favorable terms; natural resources industry and markets in Canada and generally; the ability of Québec Innovative Materials to implement its business strategies; competition; and other assumptions, risks and uncertainties.

The forward-looking information contained in this news release represents the expectations of the Company as of the date of this news release and, accordingly, is subject to change after such date. Readers should not place undue importance on forward-looking information and should not rely upon this information as of any other date. While the Company may elect to, it does not undertake to update this information at any particular time except as required in accordance with applicable laws.

Cautionary Statements This news release contains "forward-looking information" and "forward-looking statements" within the meaning of applicable Canadian securities legislation. These statements are based on expectations, estimates, and projections as of the date of this release. Forward-looking statements involve risks and uncertainties, which may cause actual results to differ materially from current expectations. Readers are cautioned not to place undue reliance on these statements, as no assurance can be provided regarding future outcomes.

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