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CHARBONE CORPORATION PRESS RELEASE

CHARBONE Announces Closing of $10M Convertible Loan Including $3M Initial Tranche

Brossard, Quebec, April 29, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor of clean ultra-high purity (“UHP”) hydrogen and industrial gases, is pleased to announce the closing of the secured convertible loan facility (the “Convertible Loan”) with RiverFort Global Opportunities PCC Ltd. (“RiverFort” or “Lender”) for up to $10 million as previously announced on March 31 and April 23, 2026.

Transaction Overview

Pursuant to the definitive agreements executed with RiverFort, CHARBONE has successfully completed the initial drawdown in the amount of $3 million (the “Initial Drawdown”) under the Convertible Loan, representing the first tranche of up to $10 million in total committed financing. The Convertible Loan is structured as a multi-drawdown secured facility, with additional tranches available to the Company over the term of the agreement, subject to customary conditions and mutual agreement between the parties.

Key Terms of the Convertible Loan

 Total facility size: Up to $10 million secured Convertible Loan, structured in multiple drawdowns.  Drawdowns: The Initial Drawdown of $3 million is now closed. The second drawdown of up to $3 million may be advanced to the Company prior to the date falling 6 calendar months from the first drawdown closing and subject to mutual agreement, and the remaining $4 million will be available to be drawn in aggregate during the Convertible Loan term, subject to mutual agreement between the Company and RiverFort and customary conditions set out in the Convertible Loan agreement.  Term: Drawdowns under the Convertible Loan are available for a three-year term, with each drawdown repayable over 18 months. Initial Drawdown maturity date is on October 29, 2027.  Interest: 12% per annum, payable in cash every 4 months. Default interest capped at 24%.  Conversion: The first drawdown is convertible, at the option of the Lender, into units composed of one common share of the Company and 0.3 of a warrant, at a conversion price of $0.15 per unit. If not converted before, 10% of the first drawdown shall be repaid at the end of 6 months, 20% at the end of 12 months and 70% on maturity date in 18 months. The securities issued upon any conversion of the principal amount of the Convertible Loan will be subject to the statutory four-month hold period in Canada.  Warrants: Each whole warrant issued in connection with the first drawdown of $3 million will be exercisable to acquire one additional common share in the capital of CHARBONE, at a price per share of $0.195, for a period of 48 months, subject to a maximum of 5 years from the Convertible Loan closing date.  Security: Secured with a first ranking hypothec over the universality of all present and future movable property of each of Charbone Hydrogène Québec Inc. (Sorel-Tracy project) and Charbone Hydrogen Corporation.  An implementation fee of 5% of the first drawdown will be paid in cash on closing and a non-refundable $20,000 due diligence fee has already been paid.

Use of Proceeds

The Convertible Loan is a key component of CHARBONE’s broader strategy to scale hydrogen production capacity and expand its industrial gas platform across North America. The proceeds from the Initial Drawdown are expected to be used to:

 Accelerate development timelines of the Company’s clean UHP hydrogen production facilities  Support capital expenditures and equipment deployment  Provide general working capital to accelerate near-term growth initiatives

CHARBONE and RiverFort will continue to evaluate subsequent drawdowns under the Convertible Loan facility, which may be advanced over time in accordance with the agreement and the Company’s capital requirements.

“This closing represents an important milestone for CHARBONE as we continue to execute on our growth strategy,” said Benoit Veilleux, CHARBONE’s Chief Financial Officer and Corporate Secretary. “The partnership with RiverFort provides flexible, staged capital that aligns with our development timeline and supports the acceleration of our hydrogen infrastructure buildout.”

About RiverFort RiverFort provides debt and equity-based capital to high-growth companies. As an international business operating from offices in London, Australia and Gibraltar along with a strong presence in Europe, and Canada, RiverFort has a multi-sector and global orientation. RiverFort prides itself in creating mutually beneficial partnerships between its alternative funding sources, including family office co-investors, and investee companies it believes in. The RiverFort team has executed in excess of US$15 billion of growth financing transactions.

About CHARBONE CORPORATION CHARBONE is a vertically integrated industrial gases company focused on developing and operating a network of supply hubs for the production, storage, and distribution of Ultra-High Purity (UHP) strategic industrial gases. The Company serves customers across sectors including semiconductors, artificial intelligence and data centers, advanced pharmaceuticals, and aerospace and defense technologies, where UHP gases are critical for high-precision manufacturing processes and operational performance. CHARBONE is advancing a network of clean UHP hydrogen production facilities across North America and selected international markets. The Company’s modular, decentralized, and demand-driven approach, combined with its integrated storage and distribution platform for all UHP gases, supports scalable growth, enhances operational flexibility, and enables more stable and diversified revenue generation. This model allows CHARBONE to efficiently serve mid-tier industrial gas customers with a reliable supply of UHP gases, including hydrogen, helium, oxygen, and any others that are in high-demand gases that are often difficult to source. The Company is committed to supporting the global transition to a lower-carbon economy by providing accessible, decentralized clean hydrogen and specialty gases, while addressing supply gaps for underserved industrial customers and accelerating the shift towards localized clean energy.

CHARBONE is listed on the TSX Venture Exchange (TSXV: CH), the OTC Markets (OTCQB: CHHYF), and the Frankfurt Stock Exchange (FSE: K47). For more information, please visit: www.charbone.com.

Forward-Looking Statements

This news release contains statements that are “forward-looking information” as defined under Canadian securities laws (“forward-looking statements”). These forward-looking statements are often identified by words such as “intends”, “anticipates”, “expects”, “believes”, “plans”, “likely”, or similar words. The forward-looking statements reflect management’s expectations, estimates, or projections concerning future results or events, based on the opinions, assumptions and estimates considered reasonable by management at the date the statements are made. Although Charbone believes that the expectations reflected in the forward-looking statements are reasonable, forward-looking statements involve risks and uncertainties, and undue reliance should not be placed on forward-looking statements, as unknown or unpredictable factors could cause actual results to be materially different from those reflected in the forward-looking statements. The forward-looking statements may be affected by risks and uncertainties in the business of Charbone. These risks, uncertainties and assumptions include, but are not limited to, those described under “Risk Factors” in the Corporation’s Management’s Discussion & Analysis for the period ended September 30, 2025, which is available on SEDAR+ at www.sedarplus.ca; they could cause actual events or results to differ materially from those projected in any forward-looking statements. Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies

of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Increases $10M Convertible Loan First Drawdown Amount to $3M

Brossard, Quebec, April 23, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, following its news release dated March 31, 2026, is pleased to announce that the closing process is progressing on the secured convertible loan (the “Convertible Loan”) that will provide for up to $10 million of financing from Riverfort Global Opportunities PCC Ltd (“RiverFort” or the “Lender”), and confirms that terms have been modified as follows:

 The first drawdown amount has been increased from $2.15 million to $3 million;  Any subsequent drawdowns will be convertible, at the option of the Lender, into Common Shares at a conversion price per common share at a 25% premium to the reference price (defined as the greater of: (i) the average of the five (5) daily VWAPs of the Shares immediately preceding the applicable drawdown date, and (ii) a 5% premium to the market price of the common shares at the time of the issuance of a press release announcing such drawdown); and  In respect of any amount not paid when due, only if applicable, default interest shall accrue in such a manner that the total return of this instrument under each drawdown, calculated based on the outstanding principal balance, shall be capped at twenty-four percent (24%) per annum.

The first drawdown will become available upon the signature of the definitive agreements with RiverFort and satisfaction of the closing conditions provided for in the Convertible Loan, including the approval by the TSX Venture Exchange. Please find unchanged terms of the first drawdown below:

 Convertible, at the option of the Lender, into units composed of one common share of the Company and 0.3 of a warrant, at a conversion price of $0.15 per unit.  Each whole warrant issued in connection with the first drawdown of $3 million will be exercisable to acquire one additional common share in the capital of CHARBONE, at a price per share of $0.195, for a period of 48 months, subject to a maximum of 5 years from the Convertible Loan closing date.  12% annual interest payable in cash every 4 months.  If not converted before, 10% of the first drawdown shall be repaid at the end of six months, 20% at the end of 12 months and 70% on maturity date in 18 months.  An implementation fee of 5% of the first drawdown will be paid in cash on closing and a non-refundable $20,000 due diligence fee has already been paid.  Secured with a first ranking hypothec over the universality of all present and future movable property of each of Charbone Hydrogène Québec Inc. (Sorel-Tracy project) and Charbone Hydrogen Corporation.

 The securities issued upon any conversion of the principal amount of the Convertible Loan will be subject to the statutory four-month hold period in Canada.

CHARBONE also announces the completion of the full conversion of the September 2025 Convertible Replacement Debentures, issued and announced on October 1, 2025, for an amount of $2.05M.

About CHARBONE CORPORATION

CHARBONE is a developer and producer of clean Ultra High Purity (UHP) hydrogen with a growing industrial gas distribution platform. Through a modular approach, CHARBONE is focused on developing a network of clean hydrogen production facilities throughout North America and select markets abroad, starting with its flagship Sorel-Tracy project in Quebec. The Company’s integrated model reduces risk, enhances scalability, and enables diversified revenue streams through partnerships in helium and other specialty gases. CHARBONE is committed to supporting the global transition to a lower-carbon economy by providing accessible, decentralized clean hydrogen and specialty gas solutions while supporting underserved industrial gas customers and accelerating the shift to localized clean energy. CHARBONE is listed on the TSX Venture Exchange (TSXV: CH), the OTC Markets (OTCQB: CHHYF), and the Frankfurt Stock Exchange (FSE: K47). Visit www.charbone.com.

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Announces the Signing of a Three-year UHP Oxygen Supply Contract with a Strategic American Customer, Strengthening its Presence in the United States

A structuring contractual commitment in the United States

This long-term contract strengthens the established business relationship with this US-based customer and follows previously announced orders, including an initial delivery of UHP oxygen. The agreement provides for a regular supply of UHP oxygen meeting the highest purity standards, thus supporting the customer’s critical operations in an advanced industrial sector.

Strengthening CHARBONE’s presence in a key market

The signing of this three-year contract marks a significant milestone in CHARBONE’s commercial expansion in the United States, particularly in the strategic “Tech Valley” region of New York State. It demonstrates the confidence placed in CHARBONE as a reliable partner for the supply of UHP industrial gases.

Acceleration of the multi-molecule strategy

This agreement is directly aligned with CHARBONE’s strategy to build an integrated platform of UHP industrial gases, combining hydrogen, oxygen, helium, and other specialty gases. By expanding its offering beyond hydrogen, CHARBONE strengthens its ability to meet the needs of advanced technology, pharmaceutical, and manufacturing industries.

CEO statement

“The signing of this three-year UHP oxygen supply contract with an American customer confirms the strength of our business relationship and our ability to deliver ultra-high purity gases according to the most demanding market standards,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “This agreement strengthens our presence in the United States and fully validates our multi-molecule development strategy. We are pursuing our goal of becoming a key player in UHP industrial gases in North America.”

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Advances Strategic Expansion in Malaysia and Confirms Intent to Participate and Operate in Green Hydrogen ASIAPAC

Brossard, Quebec, April 21, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, today announced a positive strategic update following its recent executive mission to Malaysia.

The mission was led by Dave B. Gagnon, Chairman and Chief Executive Officer, alongside Patrick Cuddihy, Senior Vice President, and builds on the previously announced framework agreement dated June 25, 2025 with Green Hydrogen ASIAPAC SDN BHD.

Following a series of high-level meetings with Malaysian stakeholders, government representatives, and industrial partners, CHARBONE confirms:

 aligned intent between all parties to advance the Malaysian green hydrogen UHP project;

 CHARBONE’s interest in taking an equity participation in Green Hydrogen ASIAPAC SDN BHD;

 CHARBONE’s intention to play an active operational role in the development and execution of the project.

This milestone reinforces CHARBONE’s strategy to expand beyond North America and establish a disciplined, scalable presence in the Asia-Pacific market, one of the fastest-growing regions for clean hydrogen and specialty gases.

Strengthening Canada–Malaysia Industrial Collaboration

CHARBONE expresses its sincere appreciation to Malaysian authorities and partners for the quality of engagement and strong institutional support throughout the mission.

The Company would like to specifically acknowledge the Malaysian Industry-Government Group for High Technology (MIGHT) for its leadership in:

 facilitating strategic dialogue;

 supporting cross-border industrial collaboration;

 enabling meaningful engagement between Canadian and Malaysian stakeholders.

Malaysia continues to demonstrate a compelling platform for clean energy deployment, supported by national decarbonization initiatives, industrial demand growth, and a strategic geographic position within Asia-Pacific.

Executing CHARBONE’s Global Industrial Gas Platform Strategy

CHARBONE’s expansion into Malaysia aligns with its broader strategy to build a globally integrated industrial gas platform, anchored in:

 ultra-high purity hydrogen (UHP H₂);

 strategic specialty gases;

 disciplined project execution through modular, decentralized production models.

The Company intends to replicate its North American approach in Asia-Pacific, targeting high-growth sectors including:

 semiconductors and advanced electronics;

 artificial intelligence and data centers;

 pharmaceuticals and biotechnology;

 defense and aerospace.

“Our mission in Malaysia confirms that CHARBONE’s international strategy is gaining real traction. Asia-Pacific represents a critical growth pillar alongside North America, and we are seeing strong alignment with partners who recognize the value of our modular, execution-focused approach,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “We are particularly encouraged by the opportunity to deepen our involvement with Green Hydrogen ASIAPAC, not only as a technical partner, but as an investor and operator. We thank MIGHT, Malaysian authorities, and our partners for their trust and commitment as we move forward together.”

CHARBONE is currently working with all parties involved to update the continuity and implementation of the current agreement previously signed with the Malaysian group and looks forward to providing our shareholders with more detailed information on the project and development scope.

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Unveils its 2026-2030 Strategic Plan: A Transformation Towards an Integrated High-Value Industrial Gas Group

Brossard, Quebec, April 14, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, today announced the rollout of its comprehensive 2026-2030 strategic plan, marking a pivotal step in its evolution towards an integrated, global industrial gas group.

Building on a solid foundation in decarbonized UHP hydrogen, CHARBONE is embarking on a structured and coherent evolution of its model, aiming to expand its positioning to include UHP gases, specialty gases, and, in North America, UHP industrial atmospheric gases, to strengthen recurring revenue and operational efficiency.

A Clear Vision: Become a premium mid-tier player

CHARBONE is well positioned in a unique strategic space: more agile than the majors, more complementary to regional distributors, and strongly differentiated by quality, metrology, and traceability. The Company aims to meet the critical needs of high-growth industries, including:

 semiconductors;

 artificial intelligence and data centers;

 advanced pharmaceuticals;

 aerospace and defense technologies.

These markets demand impeccable quality, speed of execution, and security of supply; pillars at the heart of CHARBONE’s DNA.

A Two-Pillar Strategy in North America

Growth will be based on a structured hybrid approach:

 Pillar A – UHP & Specialty (High Margins): UHP Hydrogen (HyChem UHP™), Helium, Electronic Gases, and Specialty Gases.

 Pillar B – Industrial and Atmospheric Gases (Recurring): Oxygen, Nitrogen, UHP Argon, CO2, and Industrial Blends, to build a stable revenue base and optimize logistics.

This combination increases commercial depth, customer loyalty, and financial resilience. Charbone intends to strengthen its presence in the Northeast and Pacific technology corridor of the US.

A Disciplined Operating Model: Regional Hubs and an Asset-Smart Approach

CHARBONE’s priority is to continue the development and commissioning of the various phases of the Sorel-Tracy plant. This is our anchor and the foundation of our expansion into the North American market. CHARBONE’s plan includes the deployment of 6 to 8 regional hubs in North America and internationally, enabling:

 a reduction in time-to-market;

 standardization of operations;

 stronger customer relationships;

 optimized logistics costs.

This hub-and-spoke model is a key lever for supporting growth while maintaining rigorous capital discipline in advance of additional industrial gases production capacity.

Targeted International Expansion: Europe and Asia-Pacific

CHARBONE plans to accelerate its global development with:

 Germany: strategic UHP platform in Europe;

 Malaysia: Asian hub for semiconductors and electronics.

Expansion will be guided by an asset-light approach, focused on partnerships and structuring contracts.

“At CHARBONE, we are not changing direction, we are expanding it with discipline. We started with one molecule: clean UHP hydrogen. Today, we are building an integrated platform of high-value industrial gases, tailored to the critical needs of the industries of the future. Our ambition is clear: to become an internationally recognized player known for quality, reliability, and speed of execution. We want to be a strategic partner for our customers, not just a supplier. CHARBONE is moving forward with a pragmatic, structured, and results-oriented approach – combining innovation, operational excellence, and financial discipline. The future of industrial gases is being shaped now and CHARBONE is ready,” said Dave B.

Gagnon, CHARBONE’s Chairman and CEO.

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Continues its Expansion in Helium to Serve the Ontario Market

Brossard, Quebec, April 2, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, announces the continuation of its helium market activities with the refilling of a dedicated trailer to serve an existing customer in Ontario.

This operation confirms the commercial continuity of CHARBONE’s Helium division, initially launched in 2025, and is aligned with the Company’s strategy to build an integrated platform for the distribution of strategic industrial gases across North America.

The Type 1 cylinder trailer, specifically dedicated to helium, has been refilled under the current supply agreement with an independent distributor in Ontario, demonstrating CHARBONE’s operational capability to deliver reliable and recurring service in a high-demand market.

A Strategic Positioning Complementary to Hydrogen

CHARBONE reiterates that helium represents a complementary pillar to its core UHP hydrogen business. This approach enables the Company to diversify its revenue streams while optimizing its logistics network and customer relationships.

In the current context of geopolitical tensions and supply constraints in global helium markets, CHARBONE is particularly well positioned, having anticipated the development of this segment as previously announced in its press releases dated March 31, 2025, and October 23, 2025.

“Our decision to integrate helium into our offering reflects a clear vision: to build a complete and resilient industrial gas company capable of serving our customers with diversified and secure solutions,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “In an uncertain global environment, our ability to reliably deliver critical molecules such as helium and hydrogen becomes a key competitive advantage.”

The Company intends to continue developing its Helium division across North America by leveraging its supply partnerships, logistics capabilities, and the sustained growth in demand from key sectors such as electronics, healthcare, advanced manufacturing, and high-tech industries.

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Announces Term Sheet with RiverFort for $10M Convertible Loan

Brossard, Quebec, March 31, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, is pleased to announce that it has entered into a secured convertible loan term sheet dated March 30, 2026 (the “Convertible Loan”) that provides for up to $10 million of financing from RiverFort Global Capital Ltd (“RiverFort” or the “Lender”), representing a significant milestone in CHARBONE’s current financing and growth strategy.

The Convertible Loan provides for a $10 million secured convertible loan commitment, including an initial $2.15 million first drawdown that will become available upon the signature of a definitive agreement with RiverFort and concurrent closing, subject to approval by the TSX Venture Exchange. The Company is currently working with the RiverFort team on the definitive agreement for the Convertible Loan. If completed, the Convertible Loan is expected to provide CHARBONE with growth capital to advance further in its hydrogen production capacity investments and to accelerate development timelines.

“This first step in establishing a strategic financing with RiverFort represents a transformative step for CHARBONE. It not only provides the capital to accelerate our hydrogen production projects, including our Sorel-Tracy project, but also gives us the flexibility to pursue industrial gases growth,” said Benoit Veilleux, CHARBONE’s Chief Financial Officer and Corporate Secretary. “With this long-term partner and a strengthened balance sheet, we are well positioned to execute our growth strategy and create sustainable shareholder value.”

About RIVERFORT

RiverFort provides debt and equity-based capital to high-growth companies. As an international business operating from offices in London, Australia and Gibraltar along with a strong presence in Europe, and Canada. RiverFort has a multi-sector and global orientation. RiverFort prides itself in creating mutually beneficial partnerships between its alternative funding sources, including family office co-investors, and investee companies it believes in. The RiverFort team has executed in excess of US$15bn of growth financing transactions.

Financing Highlights

 Up to $10 million secured Convertible Loan, structured in multiple drawdowns.

 The first drawdown consists of a $2.15 million initial advance payable at closing,  The second drawdown of up to $3 million may be advanced to the Company prior to the date falling 6 calendar months from the first drawdown closing and subject to mutual agreement, and the remaining $4.85 million will be available to be drawn in aggregate during the Convertible Loan term, subject to mutual agreement between the Company and RiverFort and customary conditions set out in the Convertible Loan agreement.

 The first drawdown is convertible, at the option of the Lender, into units composed of one common share of the Company (the “Common Shares”) and 0.3 of a warrant, at a conversion price of $0.15 per unit.

 Any subsequent drawdowns will be convertible, at the option of the Lender, into Common Shares at a conversion price per Common Share at a 25% premium to the 5 daily VWAP of the common shares immediately preceding their drawdown date, reflecting a premium pricing structure aligned with future growth and scale.

 Each whole warrant issued in connection with the first drawdown of $2.15 million will be exercisable to acquire one additional common share in the capital of CHARBONE, at a price per share of $0.195, for a period of 48 months, subject to a maximum of 5 years from the Convertible Loan closing date.

 Drawdowns under the Convertible Loan are available for a three-year term, with each drawdown repayable over 18-months.

 12% annual interest payable in cash every 4 months.

 If not converted before, 10% of the first drawdown shall be repaid at the end of six months, 20% at the end of 12 months and 70% on maturity date.

 An implementation fee of 5% of the first drawdown will be paid in cash on closing and a non-refundable $20,000 due diligence fee has already been paid.

 Secured with a first rank universal mortgage in Charbone Hydrogen Quebec Inc. (Sorel-Tracy project).

 The securities issued upon any conversion of the principal amount of the Convertible Loan will be subject to the statutory four-month hold period in Canada.

September 2025 Convertible Replacement Debentures Conversion

CHARBONE announce the partial conversion of the September 2025 Convertible Replacement Debentures, issued and announced on October 1, 2025, for an amount of $1.15M.

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Confirms a New Delivery of Clean UHP Hydrogen to Ontario, Strengthening its Commercial Deployment in this Strategic Market

Brossard, Quebec, March 19, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, is pleased to announce that following the initial delivery on December 22, 2025 to an independent distributor based in Ontario, the Company has made another full load delivery of clean UHP hydrogen to the same customer to support the growth of the Ontario market.

A confirmed ramp-up in commercial activity in Ontario

This new full delivery demonstrates the strength of the established business relationship with this customer and the growing demand for a reliable supply of clean UHP hydrogen in the province of Ontario, supported by CHARBONE.

It also confirms CHARBONE’s ability to ensure efficient and recurring logistics from its Sorel-Tracy production site, while meeting the operational needs of its distribution partners in key markets outside Quebec.

An execution aligned with the regional deployment strategy

Ontario represents a strategic industrial corridor for CHARBONE, particularly due to the concentration of players in the advanced manufacturing, electronics, mobility, and energy sectors. This new delivery is part of the Company’s strategy to:

 Establish recurring business relationships with regional distribution partners  Support the development of a local UHP hydrogen supply ecosystem  Prepare for the phased deployment of its future distribution and potential production hubs

Management statement

“The confirmation of this new full delivery to our client in Ontario clearly demonstrates that we are now entering a phase of commercial repeatability and operational execution,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “Beyond a simple delivery, this is a concrete signal that the Ontario market is gradually adopting a local, reliable, and strategic source of clean UHP hydrogen. CHARBONE is thus positioning itself as a reliable and key partner in structuring this supply chain in North America.”

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Confirms the Delivery of New UHP Hydrogen Orders in New York State, One of the Main American Technology Hubs

Brossard, Quebec, March 16, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, confirms today that new orders for UHP hydrogen from an existing customer located in New York State have been fully delivered, further strengthening the Company’s commercial presence in one of the leading technology and industrial hubs in the United States.

These deliveries follow the press release published on January 14, 2026, in which CHARBONE announced its first order for UHP clean hydrogen from this American customer. The continued orders and their operational execution confirm the establishment of a long-term business relationship with a key player in a leading technology ecosystem in the United States.

A strategic market at the heart of the American “Tech Valley”

New York State, particularly the region often referred to as “Tech Valley”, is one of the most dynamic technology and industrial clusters in North America, especially in the sectors:

 Microelectronics  Semiconductors  Advanced materials  Defense technologies  Advanced industrial manufacturing

In these industries, the availability of a reliable supply of ultra-high-purity industrial gases is critical for operations and process quality. The delivery of these new UHP hydrogen orders confirms CHARBONE’s ability to effectively serve these high-tech markets, while strengthening its commercial footprint in the northeastern United States.

Towards a North American platform for UHP industrial gases

While continuing to develop its clean UHP hydrogen production, CHARBONE is progressively rolling out an expanded range of specialty and ultra-high purity industrial gases, including: UHP oxygen, helium and certain strategic gases for advanced technology and industrial markets.

This approach is part of the Company’s strategy to develop an integrated UHP industrial gas distribution platform in North America, capable of meeting the growing needs of high-tech industries.

In this context, CHARBONE is also working on the gradual implementation of a regional storage and distribution hub infrastructure, designed to support reliable supply and commercial growth in strategic markets.

Management statement

“The delivery of these new UHP hydrogen orders in New York State confirms not only the strength of our business relationship with this American customer, but also the relevance of our positioning in some of the most demanding technology ecosystems in North America,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “Our vision is clear: to progressively build a North American platform for strategic and ultra-high-purity industrial gases, with clean hydrogen as its core molecule. Advanced technology markets demand extremely high supply standards, and CHARBONE intends to play an increasing role in this ecosystem in the coming years.”

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

CHARBONE CORPORATION

PRESS RELEASE

CHARBONE to Present at the Hydrogen East Conference and Announce the Development of a Supply Hub in the Atlantic Market through its Subsidiary

Brossard, Quebec, March 12, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a North American producer and distributor specializing in clean Ultra High Purity (“UHP”) hydrogen and strategic industrial gases, is pleased to announce its participation in the Hydrogen East conference on April 13, 2026, as well as the development of a supply hub dedicated to UHP hydrogen and strategic specialty gases in the Atlantic Canada market (“Atlantic Hub”).

This initiative marks a new step in CHARBONE’s deployment strategy aimed at establishing an integrated

network of hubs for the production, storage and distribution of hydrogen and strategic industrial

gases in North America.

The future Atlantic Hub, which will be managed by its subsidiary CHARBONE Nova Scotia Inc. and operational by June 2026, will serve as a dedicated physical facility for local storage and regional distribution, ensuring a reliable and flexible supply of hydrogen for a variety of demanding industrial users, including the defense, advanced manufacturing, mobility, and energy infrastructure sectors.

CHARBONE has been active in the Atlantic region for over three (3) years and has developed in-depth knowledge of the Nova Scotia, New Brunswick, and Prince Edward Island markets, while working on various initiatives with major potential clients and partners, particularly in the following areas:

 Port infrastructure  Canadian Navy shipyards and facilities  Automotive component supply chain  Utility and energy companies  Research and development companies  Advanced zero-emission transportation solutions

This “hub-and-spoke” model is a cornerstone of CHARBONE’s strategy to progressively deploy a scalable network of hydrogen and strategic industrial gas supply hubs across Canada and the United States, supporting regional markets through local storage, logistics, and distribution capabilities.

“The Atlantic Canada region represents a strategic market for CHARBONE, particularly due to the presence of high-quality infrastructure, large industrial users, and energy transition initiatives,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “The Company anticipates that this hub will play a structuring role in the development of its future North American hydrogen logistics platform.”

For more details on the Hydrogen East Conference, please click on the link below:

https://www.linkedin.com/feed/update/urn:li:activity:7435768392369876992/?utm_source=share&utm_m edium=member_desktop&rcm=ACoAAAdBZd8BuWTYA8pImhgdOX61XL2d0BF2e2s

About CHARBONE CORPORATION

Forward-Looking Statements

Except as required under applicable securities legislation, Charbone undertakes no obligation to publicly update or revise forward-looking information.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in policies of the

TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.