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CHARBONE CORPORATION

PRESS RELEASE

CHARBONE Confirms New UHP Hydrogen Orders and its First UHP Oxygen Order in the United States

Brossard, Quebec, February 25, 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, further to its press release dated January 14, 2026, the Company has secured additional orders from an existing U.S. customer based in New York State.

The customer has placed new orders for clean UHP hydrogen, produced and distributed by CHARBONE, and placed its first order for UHP oxygen. While CHARBONE’s production activities remain focused on clean UHP hydrogen, the Company delivers also complementary industrial gases like oxygen, helium, and other specialty gases to support customer requirements.

Strengthening customer relationships in a strategic market: New York State

Following the announcement on January 14, 2026, regarding an initial order for clean UHP hydrogen from a US customer located in New York State, CHARBONE indicates that this customer is continuing its collaboration with CHARBONE. The new order for CHARBONE’s UHP hydrogen, combined with an initial order for UHP oxygen, represents a further step in CHARBONE’s commercial deployment in the United States, a strategic market for future growth.

Diversification of UHP offerings: hydrogen and oxygen

CHARBONE considers the addition of an order for UHP oxygen to its order book, alongside UHP hydrogen, to be an important milestone in its roadmap: developing a multi-molecule platform of UHP industrial gases, aligned with the needs of advanced technology and industrial sectors, particularly in the American “Tech Valley”.

“These new orders, now including distribution and delivery of UHP oxygen, confirm not only that the relationship with our existing customer in New York State is strengthening, but also the relevance of our strategy to diversify into UHP industrial gases,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “Our objective is clear: to offer reliable supply and first-class purity standards in order to meet the highest demands of the technology and industrial markets in North America.”

Momentum Public Relations Inc. Appointment

On February 4, 2026, CHARBONE announced that it had retained the services of Momentum Public Relations Inc. (“Momentum”), in relation to investor and public relations strategies. Momentum is a Montreal-based public relations and investor relations firm with a proven track record of supporting emerging companies in the Canadian financial markets. Founded in 2008, Momentum specializes in designing targeted investor outreach programs for listed small and mid-cap companies, with expertise in the resource sector. Through strategic communications, investor outreach, and market engagement, Momentum strives to increase companies’ visibility, strengthen their presence, and connect them with a broader network of qualified investors. Momentum holds a variable stake in CHARBONE and reserves the right to use its own funds to increase its position.

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

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 to Present on the Emerging Growth Conference on February 25, 2026

Brossard, Quebec, February 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, today announced that it will be presenting at the Emerging Growth Conference on February 25, 2026.

CHARBONE will be presenting virtually for 30 minutes on Wednesday February 25, 2026 at 11:25am ET covering a full overview of the company, upcoming milestones and will open the floor for questions following prepared remarks. Questions may be submitted in advance to Questions@EmergingGrowth.com or can be asked live during the event. CHARBONE invites individual and institutional investors, advisors and analysts to attend its live, interactive presentation.

Please register below to ensure you are able to attend the conference and receive any updates that are released.

Date: Wednesday, February 25, 2026 Time: 11:25 – 11:55am ET Register: https://goto.webcasts.com/starthere.jsp?ei=1740947&tp_key=dbde48090b&sti=chhyf

If attendees are not able to join the event live on the day of the conference, an archived webcast will also be made available on EmergingGrowth.com and on the Emerging Growth YouTube Channel, http://www.YouTube.com/EmergingGrowthConference. We will release a link to that after the event.

About the Emerging Growth Conference The Emerging Growth conference is an effective way for public companies to present and communicate their new products, services and other major announcements to the investment community from the convenience of their office, in a time efficient manner.

The Conference focus and coverage includes companies in a wide range of growth sectors, with strong management teams, innovative products & services, focused strategy, execution, and the overall potential for long term growth. Its audience includes potentially tens of thousands of Individual and Institutional investors, as well as Investment advisors and analysts.

All sessions will be conducted through video webcasts and will take place in the Eastern time zone.

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 its First Hydrogen Supply Hub in the Ontario Market

Brossard, Quebec, February 4, 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 the development of its first Charbone Hydrogen Supply Hub in the Ontario market, marking a key milestone in the Company’s Canadian expansion strategy.

The Charbone Hydrogen Supply Hub will serve as a dedicated physical storage and local distribution facility, designed to support reliable, on-demand hydrogen supply to industrial, advanced-manufacturing, and mobility customers across Southern Ontario.

Importantly, CHARBONE will use its already existing physical infrastructure for the Hub, including its own hydrogen storage tube assets, and other components, enabling the Company to:

 Secure local inventory and buffer capacity

 Control logistics, safety, and high-quality standards

 Reduce dependency on third-party logistics and storage

 Improve supply reliability and response times for customers

This hub-and-spoke model will be another cornerstone of CHARBONE’s strategy to build a scalable network of Hydrogen Production and Supply Hubs across Canada and the United States, supporting the regional markets with regional localized storage, logistics, and distribution.

“This first Charbone Hydrogen Supply Hub in Ontario represents a strategic step forward for CHARBONE,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “By investing directly in physical storage assets, we are reinforcing our commitment to local operational control, supply security, and long-term value creation in key industrial markets.”

The Ontario hub is expected to support multiple type of customers and dedicated customer supply programs, with different delivery formats, including tube trailers and micro-bulk solutions. The Ontario will be designed to accommodate future storage and production capacity expansions as market demand grows.

CHARBONE views Ontario as a priority market due to its concentration of industrial users, mobility initiatives, and advanced-manufacturing ecosystems, and expects the Hydrogen Supply Hub to play a foundational role in the Company’s broader North American hydrogen logistics platform.

Momentum Public Relations Inc. Appointment

CHARBONE has engaged Momentum Public Relations Inc. (“Momentum”), to provide services in relation to investor and public relations strategies. The services will mainly be represented by Mr. Maxence Gagné-Godbout who is acting at arm’s length to the Company. Under the terms of the agreement, Momentum will receive a fee of $10,000 per month. The six-month agreement will continue until May 15, 2026. No other compensation is payable in connection with the engagement. The agreement is subject to regulatory approval.

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 Hydrogen Sales in Ontario to Support Fuel Cell Generator Operations for the Film Industry

Brossard, Quebec, January 22, 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 the sale of clean UHP hydrogen in Ontario to a specialized contractor serving the film and entertainment production industry, enabling the operation of hydrogen fuel cell generators used on movie and television production sites.

Hydrogen for Clean On-Set Power Generation in Ontario

CHARBONE confirms it has begun supplying clean UHP hydrogen in Ontario to support the deployment of fuel cell-powered generator systems used to provide electricity for production sets and related mobile infrastructure.

This initiative represents a high-visibility commercial application for hydrogen, demonstrating a concrete pathway to reducing emissions, noise, and fuel logistics complexity typically associated with traditional diesel-based generators in the film production ecosystem.

The hydrogen supply will be supported through CHARBONE’s distribution capabilities and delivery logistics, ensuring safe and reliable service to meet the operational needs of professional production crews working under strict scheduling requirements.

A Strategic Step Toward Practical Hydrogen Adoption

This first Ontario sale into the film-related power segment reflects CHARBONE’s broader strategy to expand hydrogen commercialization beyond traditional industrial uses and into real-world mobile and temporary power applications, where fuel cells offer strong advantages in performance, sustainability, and operating conditions.

CEO Comment

“Hydrogen is no longer a concept—it’s becoming an operational solution,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “We are proud to support a specialized contractor in Ontario enabling fuel cell generator operations for the film industry. This is a strong example of how clean UHP hydrogen can deliver real value today—quiet, reliable, and low-emission energy, where and when it matters.”

While CHARBONE is not disclosing the volume, duration, or financial terms of this commercial arrangement in order to maintain its competitive position, revenues generated by the Company’s production, distribution, and service activities are presented on a consolidated basis in its quarterly financial statements.

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 Secures its First Order for Clean UHP Hydrogen from a US Customer in NY State

Brossard, Quebec, January 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, is pleased to announce that it has secured its first order for clean UHP hydrogen from a customer based in New York State, USA. This customer is part of a major Japanese industrial conglomerate, representing a significant strategic breakthrough for CHARBONE in the US market.

First order of clean UHP hydrogen in the American Tech Valley

As part of its commercial rollout in the United States, CHARBONE confirms it has received a firm order for clean UHP hydrogen from a customer located in New York State, at the heart of a leading technology corridor often referred to as America’s Tech Valley. This order marks a key milestone in the cross-border commercialization of CHARBONE’s production and confirms the US market’s interest in a reliable supply of UHP hydrogen.

The order will be fulfilled using the Company’s existing production capacity and is part of a broader strategy to establish long-term business relationships with world-class industrial and technology clients.

A major commercial breakthrough in the United States

Securing this first US order is a concrete validation of CHARBONE’s value proposition and an important stepping stone for its expansion in the United States. Given the limited supply of clean UHP hydrogen in the North American market and the growing demand observed in advanced technology and industrial sectors, CHARBONE is not disclosing the volume, duration, or financial terms of this order in order to maintain its competitive position. Revenues generated by the Company’s production, distribution, and service activities are presented on a consolidated basis in its quarterly financial statements.

“Securing this first order for clean UHP hydrogen in the United States is a pivotal moment for CHARBONE,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “Being selected by a client affiliated with a major Japanese conglomerate in New York State confirms the credibility of our platform, the quality of our UHP hydrogen, and our ability to meet the demands of the technology markets 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 Announces a Non-Brokered Private Placement Closing of $3.1M

Brossard, Quebec, January 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 the closing of a non-brokered private placement (the “Equity Offering”) for gross proceeds of $3.1 million.

“We are excited to start the year 2026 with a strong improvement to our balance sheet and support shown by long term investors in this private placement,” said Benoit Veilleux, CFO and Corporate Secretary of CHARBONE. “The completion of this financing provides CHARBONE with the resources for the Phase 1B at Sorel-Tracy site, increasing our clean UHP hydrogen production capacity by 4.5 times reaching almost 1 tonne per day.”

Private Placement Details

CHARBONE is issuing 23,614,286 Units, with each Unit priced at $0.13125 and consisting of one common share and one common share purchase warrant.

 The proceeds from the Equity Offering will be primarily allocated to the Company’s purchase and installation of the Phase 1B hydrogen equipment at the Sorel-Tracy site, and general working capital requirements.  Each of the units offered (each a “Unit”), priced at $0.13125 per Unit, included one common share of the Company (each, a “Unit Share”) and one common share purchase warrant (each, a “Warrant”). Each Warrant gives the holder the right to buy one additional common share of the Company at an exercise price of $0.18 for 24 months after the closing date of the Equity Offering (the “Closing Date”) with an acceleration right forcing the exercise of Warrants, within 30 days, if the market price of the Company’s common shares on the TSX Venture Exchange is $0.30 or higher for 10 consecutive trading days.  At the Closing Date, the Company paid a finder’s fee of $247,950. It also issued 1,889,143 finder’s warrants to registered dealers related to the sale of specific Units to qualified subscribers introduced by such dealers. The Units were distributed pursuant to a decision under Section 12 of the Securities Act (Quebec) to qualified subscribers outside of the Province of Quebec mainly to one institutional investor located in Germany.  The closing of the Equity Offering remains subject to the approval of the TSX Venture Exchange and other customary closing conditions.

This news release does not constitute an offer to sell or a solicitation of an offer to buy, nor shall there be any sale of securities in any jurisdiction where such offer, solicitation, or sale would be unlawful, including in the United States. The securities have not been and will not be registered under the United States Securities Act of 1933, as amended (the “1933 Act”) or any applicable state securities laws and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. Persons (as defined in Regulation S under the 1933 Act) unless registered under the 1933 Act and relevant state laws, or if an exemption from registration is available.

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.

Brossard, Quebec, December 22, 2025 – 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 the successful delivery of the first load of clean UHP hydrogen to an independent distributor based in Ontario, marking the official start of revenue generation for its production division.

First delivery of clean UHP hydrogen to an independent distributor customer in Ontario

As part of its commercial launch, CHARBONE announces its very first delivery of clean UHP hydrogen produced in Sorel-Tracy, for its independent distribution partner located in Ontario. This initial shipment confirms the Company’s ability to efficiently supply markets outside Quebec from the outset.

This contract marks the beginning of a new phase of commercial growth for CHARBONE, which plans to gradually expand its distribution network and strengthen its presence in the main industrial corridors of Eastern Canada and the American Midwest. Given limited access to consistent and reliable clean UHP hydrogen supply in the North American market and strong demand for the Company’s product, CHARBONE does not disclose purchase order volumes or pricing in order to preserve its competitive position. Revenues from CHARBONE’s production, distribution, and advisory businesses are reported quarterly on a consolidated basis.

“We are extremely proud to begin delivering locally produced clean UHP hydrogen to our first customer today,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “This is another major milestone for CHARBONE, and also for the clean UHP hydrogen industry in North America.”

For more information on CHARBONE’s vision, modular plant configuration, and economic outlook, please visit the Company’s website for updated investor materials including presentation and fact sheet. Also, if you haven’t done so already, please watch the Company’s investor webinar recorded on December 16, 2025 by visiting the following link: https://info.rbmilestone.com/charbone-webinar-dec-2025.

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.

Brossard, Quebec, December 16, 2025 – 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 another major milestone: the completion and commercial launch of its modular site in Sorel-

Tracy (Phase 1A).

The Sorel-Tracy project enters commercial production mode

Following the complete installation of Phase 1A equipment and successful testing conducted over the last weekend of November, CHARBONE confirms that the Sorel-Tracy site is now fully operational. Technical teams have validated process stability, production parameter compliance, and the performance.

“The commercial launch of the Sorel-Tracy plant represents the culmination of several years of work, rigor, and strategic vision,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “We are extremely eager to begin delivering locally produced clean UHP hydrogen to our customers and are currently preparing first delivery. This is a major milestone for CHARBONE, and also for the clean UHP hydrogen industry in North America.”

A local production model for North America

The modular plant in Sorel-Tracy, Quebec’s first local and decentralized clean UHP hydrogen production facility, is a cornerstone of CHARBONE’s North American strategy. By deploying local production units, the Company directly addresses the needs of industrial clients seeking a reliable, clean, sustainable, and competitive supply.

CHARBONE’s roadmap envisions a phased deployment, leading to increased capacity and the expansion of an interconnected network for the production and distribution of strategic gases across Canada and the United States.

For more information on CHARBONE’s vision, modular plant configuration, and economic outlook, please see the investor presentation available on the Company’s website. Also, if you haven’t done so already, please register below for the Company’s upcoming investor webinar.

Webinar: Tuesday, December 16, 2025 Time: 11:00am ET

Register: https://info.rbmilestone.com/charbone-webinar-dec-2025

About CHARBONE CORPORATION

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 Filing Statement dated March 31, 2022, which is available on SEDAR at www.sedar.com; 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.

Brossard, Quebec, December 9, 2025 – 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 excited to announce a key addition to its clean UHP hydrogen production team as it prepares for first delivery at its flagship project in Sorel-Tracy, Quebec.

Strengthening Clean UHP hydrogen production with New Leadership

CHARBONE is pleased to welcome Jean Watelle, a seasoned engineer with more than 25 years of experience in technical and manufacturing management, including 11 years as Director of Hydrogen and Site Operations, Large Industries – Eastern Region at Air Liquide Canada, 5 years in Lean Manufacturing and as a Tier 1 specialist for Chrysler and Ford. Recognized for his dynamism, creativity, and deep expertise in continuous improvement methodologies, Mr. Watelle thrives on tackling ambitious challenges and delivering results through strong team collaboration.

Mr. Watelle’s operational acumen will be instrumental as CHARBONE transitions its first project deployment to full-scale production. Working closely with CHARBONE’s executive team, Mr. Watelle will support the operation and the management of clean UHP hydrogen production from projects across the U.S. and Canada.

“Jean’s extensive experience in industrial gases, particularly in operations and production management, will significantly strengthen our team as we move from planning to execution,” said Dave Gagnon, CHARBONE’s Chief Executive Officer and Chairman of the Board. “As we prepare to generate our first revenues from Sorel-Tracy, we are focused on increasing shareholder value through efficient operations and strategic growth.”

About CHARBONE CORPORATION

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 Filing Statement dated March 31, 2022, which is available on SEDAR at www.sedar.com; 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.

Brossard, Quebec, December 4, 2025 – 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 that Company management will be hosting a corporate update webinar on December 16th at 11:00am ET and has engaged Red Cloud Securities Inc. (“Red Cloud”) to provide Market Making services to the Company.

Corporate Update Webinar

CHARBONE invites all investors and other interested parties to register for the webinar at the link below. Dave Gagnon, Chairman and CEO, and Benoit Veilleux, CFO, will be providing a brief overview on the Company’s operations, market insights on clean UHP hydrogen and other industrial gases, recent corporate achievements and upcoming milestones.

Date: Tuesday, December 16th, 2025 Time: 11:00am ET Register: https://info.rbmilestone.com/charbone-webinar-dec-2025

HAVE QUESTIONS? There will be an allotted time following the live presentation for a Q&A session. Unaddressed questions will be reviewed by management and responded to accordingly. You may submit