Unibios Holdings S.A. (the “Company”) announces that on 30 June 2026, an agreement was signed for the cross-border merger of its subsidiaries Watera International, based in Luxembourg, and Watera S.A. (listed on Euronext Growth Paris) (the “Merger”). It is noted that today the Company holds 65% of the shares of Watera S.A. and 70% of Watera International, while it is estimated that after the merger Unibios will hold 87% of WATERA S.A.
This transaction serves the group's objective of simplifying and streamlining its structure. At the same time ensuring the concentration of its activities in the field of water and liquid waste treatment in a single structure listed on Euronext Growth Paris.
The Merger is part of a broader strategic plan for the group's further international growth and expansion. In particular, it will highlight the group's real size and will contribute to strengthening its position in the international market.
Key terms of the transaction
The transaction will consist of the merger by absorption of Watera International by Watera S.A.
In exchange for the contribution of all assets and liabilities of Watera International, the shares held by Unibios, as the largest shareholder of Watera International, will be exchanged for new ordinary shares of Watera S.A., in accordance with the exchange ratio provided for in the merger agreement.
The proposed merger was approved by the boards of directors of Watera S.A. and Watera International on 30 June 2026. The merger agreement was signed on the same day.
Subject to the fulfillment of the usual conditions, which include among other things the review by an independent auditor appointed by the competent court, the approval by the General Meetings of the shareholders of the two merging companies, the Merger will take effect retroactively, from an accounting and tax perspective, from 1 January 2026.
The UNIBIOS Group is a holding company listed on the Athens Stock Exchange. Through its subsidiaries, UNIBIOS Holdings S.A. is active in the rapidly growing markets of Water Treatment and Recycling.
WATERA International SA is a 100% subsidiary of Unibios Holdings, and through Watera Hellas S.A.I.C., a leading company in the field of water treatment in Greece. Watera Hellas was founded in 1963 and ranks first in terms of installed desalination capacity in Greece.
Also, through its other subsidiary companies, Watera International operates successfully, apart from Greece, in the Czech Republic, Bulgaria and Italy, while at the same time it has developed significant export activity in Western and Eastern Europe, the Middle East and Africa. In July 2025, the French company WATERA S.A. (formerly OSMOSUN), listed on the Euronext Growth stock exchange in Paris, whose share capital Unibios acquired 65% of, joined the Watera group.
WATERA S.A. is active in the water treatment market and especially in the design and marketing of low-energy-footprint desalination systems.