CARBIOS

Regulatory Filings • Nov 24, 2025

PRESS RELEASE

This press release, in English, is for information only. Solely the French version is the CARBIOS official document.

CARBIOS signs two new multi-year commercial agreements for recycled PET with major players in the beverage industry

Clermont-Ferrand (France), 24 November 2025 (18h30 CET). CARBIOS (Euronext Growth Paris : ALCRB), announces the signing of two new multi-year commercial agreements with major players in beverage industry, for the supply of recycled PET (r-PET).

• The signing of these two new commercial agreements marks CARBIOS's entry into a new strategic sector: beverages.
• These new commercial agreements are part of the pre-commercialization process for CARBIOS's future industrial site, bringing the current level of pre-sales to approximately 50% of the site's maximum production capacity.
• Negotiations are ongoing with other partners to reach a pre-commercialization level of 70% of the Longlaville site's maximum capacity, a threshold constituting one of the conditions for obtaining additional non-dilutive funding necessary to resume construction of the Longlaville plant.
• A regional grant of €12.5 million has also been signed, bringing the total amount of public funding already secured to €42.5 million.

Vincent Kamel, CEO of CARBIOS : "These new agreements confirm the robustness of our technology and the attractiveness of our offer for strategic sectors such as beverages. They also comfort our strategy of sector diversification."

About CARBIOS:

CARBIOS is a biotechnology company that develops and industrializes biological solutions to reinvent the lifecycle of plastics and textiles. Inspired by nature, CARBIOS designs enzyme-based biological processes to break down plastics, with the mission of preventing plastic and textile pollution and accelerating the transition to a circular economy. Its two innovative technologies—dedicated to PET biorecycling and PLA biodegradation—are currently scaling up to industrial and commercial levels. Its industrial demonstration plant for biorecycling has been operational since 2021, and construction of the world's first biorecycling plant is expected to resume before the end of 2025, subject to securing the necessary additional funding. CARBIOS is supported by prestigious brands in the cosmetics, food, and apparel industries, aiming to improve the recyclability and circularity of their products. Nestlé Waters, PepsiCo, and Suntory Beverage & Food Europe are members of a packaging consortium founded by CARBIOS and L'Oréal. On, Patagonia, PUMA, PVH Corp.,

PRESS RELEASE

This press release, in English, is for information only. Solely the French version is the CARBIOS official document.

and Salomon collaborate with CARBIOS in a textile consortium. CARBIOS is part of the global community of B Corp™ certified companies that are transforming their business models to serve the common good.

Visit www.carbios.com to learn more about biotechnology for circular plastics and textiles.

LinkedIn : carbios / Instagram : carbios

Information on CARBIOS shares:

ISIN Code FR0011648716 Ticker Code Euronext Growth: ALCRB LEI 969500M2RCIWO4NO5F08

CARBIOS is eligible for the PEA-PME, a government program allowing French residents investing in SMEs to benefit from income tax rebates.

Disclaimer on forward-looking statements and risk factors:

This press release contains forward-looking statements, not historical data, and should not be construed as a guarantee that the facts and data stated will occur. These forward-looking statements are based on data, assumptions and estimates considered reasonable by CARBIOS. CARBIOS operates in a competitive and rapidly evolving environment. It is therefore not in a position to anticipate all risks, uncertainties or other factors that may affect its business, their potential impact on its business or the extent to which the materialization of a risk or combination of risks could lead to results that differ significantly from those mentioned in any forward-looking statement. CARBIOS draws your attention to the fact that forward-looking statements are in no way a guarantee of its future performance and that its actual financial position, results, cash flows, its partnerships and corporate agreements, and the development of the sector in which CARBIOS operates may differ significantly from those proposed or suggested by the forward-looking statements contained in this document. In addition, even if CARBIOS' financial position, results, cash flows, its partnerships and corporate agreements, and developments in the industry in which it operates are consistent with the forward-looking information contained in this document, such results or developments may not be a reliable indication of CARBIOS' future results or developments. Readers are also advised to carefully consider the risk factors described in the Universal registration document filed with the French Market Authority ("AMF"), as well as in the half-year financial report available free of charge on the Company's website. Should all or any part of these risk factors occur or others, in no case whatsoever will CARBIOS be liable to anyone for any decision made or action taken in conjunction with the information and/or statements in this press release or for any related damages. This information is given only as of the date of this press release. CARBIOS makes no commitment to publish updates to this information or on the assumptions on which it is based, except in accordance with any legal or regulatory obligation applicable to it.

For additional information, please contact:

CARBIOS Laura Perrin

Communication laura.perrin@carbios.com +33 (0)6 46 44 04 79

CARBIOS Benjamin Audebert Investor Relations contact@carbios.com +33 (0)4 73 86 51 76

Press Relations (DACH & UK) MC Services Anne Hennecke carbios@mc-services.eu +49 (0)211 529 252 22