CHARBONE Announces Closing of $1.5M Drawdown with RiverFort to Accelerate Growth

Varennes, Quebec, September 8, 2026 – CHARBONE CORPORATION (TSXV: CH; OTCQB: CHHYF; FSE: K47) (“CHARBONE” or the “Company”), a vertically integrated industrial gases company focused on production, distribution and storage of clean ultra-high purity (“UHP”) hydrogen and other strategic industrial gases, is pleased to announce the closing of the $1.5 million drawdown previously announced on September 2, 2026 from RiverFort Global Opportunities PCC Ltd (“RiverFort” or “Lender”), representing half of the second drawdown of up to $3 million that is available to the Company prior to the date falling 6 calendar months from the first drawdown closing of the secured convertible loan facility (the “Convertible Loan”) for up to $10 million as previously announced on April 29, 2026.

Transaction Overview

CHARBONE has successfully completed the closing of the $1.5 million second drawdown under the Convertible Loan with RiverFort. 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. Accordingly, the Company may complete an additional drawdown of up to $1.5 million pursuant to the $3 million that is set aside under the second drawdown provision of the Convertible Loan.

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 closed on April 29, 2026. $1.5 million of the second drawdown of up to $3 million is now closed, and the remaining $1.5 million may be advanced to the Company prior to the date falling 6 calendar months from the first drawdown closing, subject to mutual agreement. The remaining $4 million out of $10 million will be available to be drawn by the Company 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. The maturity dates are October 29, 2027 for the initial drawdown and March 4, 2028 for the $1.5 million second drawdown.
Interest: 12% per annum, payable in cash every 4 months. Default interest capped at 24%.
Conversion: The $1.5 million of the second 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 $0.196875 per unit. If not converted before, 10% 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 from the closing date.
Warrants: Each whole warrant issued in connection with the $1.5 million drawdown will be exercisable to acquire one additional common share of CHARBONE, at a price per share of $0.236250, for a period of 48 months, subject to a maximum of 5 years from the Convertible Loan closing date, April 29, 2026.
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 drawdowns has been paid in cash on closing of each drawdown.

As a result of the closing of the $1.5 million drawdown, RiverFort currently holds an aggregate of $4.5 million in principal amount owing under the Convertible Loan. 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 at the Company’s request in line with capital requirements.

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 $1.5 million drawdown are expected to be used to:

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

Benoit Veilleux, Chief Financial Officer and Corporate Secretary of CHARBONE, commented: “With this capital now closed, we are focused on execution to maintain our rapid pace of growth. The proceeds are being deployed directly toward our priorities at Sorel-Tracy and across our industrial gas platform, and we remain committed to delivering on the milestones we have communicated to our shareholders.”

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.

IMPAQ IR contract

On July 16, 2026, CHARBONE announced its engagement of IMPAQ Capital Inc. (“IMPAQ”), an independent service provider, to deliver investor relations services. In connection with this engagement, the Company is providing the following update regarding the compensation granted to IMPAQ. Stock options previously announced on June 22, 2026 (300,000 options at $0.15 per share, expiring June 22, 2028) were cancelled and regranted on July 13, 2026, under identical terms to aligned with the effective starting date of the agreement. IMPAQ has no interest, directly or indirectly, in CHARBONE or its securities, or any right or intent to acquire such an interest other than the options announced herein.

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.