Chartres, 22 July 2025 at 5:30 PM

OSMOSUN (the “Company”), announces the completion of its business combination with Unibios Holdings S.A., a company incorporated under Greek law and listed on the Athens Stock Exchange (“Unibios”)¹, through (i) the settlement and delivery of the capital increase reserved for Unibios by way of a contribution in kind to OSMOSUN of the full and entire ownership of 6,913,580 ordinary shares issued by its subsidiary, Watera International S.A. (representing 30.06% of the share capital and voting rights of the latter) and (ii) the establishment of a new governance structure.

Maxime Haudebourg (Chairman and CEO of OSMOSUN) said: “The successful agreement between Unibios and OSMOSUN represents a new beginning for OSMOSUN. In addition to OSMOSUN's specific expertise in renewable energy desalination, our field of activity will be expanded to include water treatment. Our combined and complementary solutions will enable us to look to the future with confidence in this rapidly developing market.”

Orfeas Mavrikios, CEO of Unibios and Chairman of the Board of Directors and CEO of Watera, said: “We are very pleased to have successfully completed this agreement between Unibios and OSMOSUN. We are confident that the combination of OSMOSUN and Watera, with the many synergies it brings, will enable us to more effectively capitalise on the growing opportunities in the global water treatment and recycling markets.”

Settlement and delivery of the capital increase reserved for Unibios by way of a contribution in kind

The 9,195,062 new ordinary shares issued as part of the capital increase reserved for Unibios by way of a contribution in kind (22nd and 23rd resolutions of the Company's General Meeting of 30 June 2025) are of the same class as the Company's existing ordinary shares and are subject to all the provisions of the Company's Articles of Association.

These new ordinary shares of the Company carry current dividend rights and entitle their holders, from the date of issue, to all distributions decided by the Company.

They are immediately assimilated to the existing shares of the Company already traded on the Euronext Growth market in Paris and are tradable on the same listing line under the same ISIN code FR001400IUV6.

New Governance

At its meeting today, the Company's Board of Directors, in accordance with the investment agreement entered into between Unibios and OSMOSUN on 22 May 2025², took note of the resignations of Go Capital (director represented by Hervé Bachelot) and Centre Capital Développement (UI Investissement) (director represented by Bruno Jas), as well as the appointments of Antonios Svoronos and Orfeas Mavrikios as new directors, as approved by the shareholders at the Company's General Meeting on 30 June 2025.

OSMOSUN's Board of Directors is now composed of the following members:

1. Maxime Haudebourg, Chairman of the Board of Directors and Chief Executive Officer,

2. Julien Cauvy, Director and Deputy Chief Executive Officer,

3. OKwind Group, Director represented by Louis Maurice,

4. Antonios Svoronos, Director,

5. Orfeas Mavrikios, Director.

ABOUT OSMOSUN^®

Founded in 2014, OSMOSUN®'s ambition is to become a leading player in the low-carbon water market in order to make drinking water accessible to all.

OSMOSUN® has developed a unique, patented, cost-effective, clean and sustainable solution for solar-powered battery-free seawater and brackish water desalination. This innovation makes OSMOSUN® units among the most energy-efficient and cost-effective solutions in the world. The water production capacities of its units range from 1 m3 to 50,000 m3 per day.

At 31 December 2024, 78 desalination units have been sold in 27 countries.

More information: OSMOSUN® | Create water where life is

CONTACTS

¹ See the Company's press releases dated 23 May 2025, 6 June 2025, 30 June 2025, 8 July 2025, 16 July 2025 and 18 July 2025.
² See the Company's press release dated 23 May 2025.