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

Momentum Public Relations Inc. Appointment

CHARBONE has retained the services of Momentum Public Relations Inc. (“Momentum”) for services related to its investor and media relations strategies. These services will be primarily provided by Mr. Maxence Gagné-Godbout, who acts at arm’s length from the Company. Under the agreement, Momentum will receive fees of $10,000 per month. The six-month agreement is valid until May 15, 2026. No other compensation is payable under this engagement. The agreement is subject to regulatory approval.

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).

Forward-Looking Statements

This press release contains statements that constitute “forward-looking information” within the meaning of 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. Forward-looking statements reflect the respective expectations, estimates or projections of Charbone’s management regarding future results or events, based on opinions, assumptions and estimates considered reasonable by management at the date the statements are made. Although Charbone believes that the expectations expressed 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 differ materially from those expressed in the forward-looking statements. Risks and uncertainties related to Charbone’s activities may affect forward-looking statements. These risks, uncertainties and assumptions include, without limitation, those described under “Risk Factors” in the Company’s management discussion and analysis for the period ended September 30, 2025, which can be accessed on SEDAR+ at www.sedarplus.ca; they could cause actual events or results to differ materially from those anticipated in the forward-looking statements. Unless required by applicable securities laws, Charbone does not undertake to update or revise the forward-looking statements.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this press release.