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Alzchem Group AG

 Disclosure

according to Article 5 of EU Regulation 596/2014

and Article 2 Section (1) of Commission Delegated Regulation (EU) 2016/1052

Share Repurchase

Alzchem Group AG (“Company”) hereby announces the start of the share repurchase program announced in the ad hoc announcement dated October 27, 2026.

Starting November 3, 2026, the Company will repurchase over a period of up to twelve months up to 125,000 no-par-value shares of the Company at a total purchase price of up to EUR 20 million (excluding ancillary purchase costs) exclusively on the electronic trading platform of the Frankfurt Stock Exchange (XETRA). The maximum purchase price per share (excluding ancillary purchase costs) will not exceed the share price determined by the opening auction in XETRA trading on the trading day by more than 10 per cent and it will not fall short of the share price by more than 20 per cent. The Managing Board of the Company, with the consent of the Supervisory Board, is thus exercising the authorization granted by the Annual General Meeting on May 7, 2024, to acquire own shares.

The purpose of the buyback is (i) to use the acquired shares as acquisition currency, (ii) to issue them to employees of the Alzchem group of companies under any further employee share participation programs or (iii) to cancel the repurchased shares and thereby reduce the Company’s share capital. Other legally permissible purposes are not excluded.

The repurchase program will be carried out on behalf, and for the account, of the Company through a bank, which was commissioned by the Company. The bank will decide on the timing, the volume and the conditions of each share purchase, within the general framework set by the Company, independently and without being influenced by the Company. The share repurchase program may be suspended and resumed at any time, in line with applicable statutory regulations.

Regardless of its extended purposes, the share repurchase program will be implemented in accordance with the trading conditions of Art. 5 of EU Regulation No. 596/2014 and Art. 2–4 of Commission Delegated Regulation (EU) 2016/1052 (“DelReg”). Accordingly, executed repurchases will be announced in a manner compliant with the requirements of Art. 2 Sec. (3) DelReg no later than by the end of the seventh trading day following their execution. In addition, the Company will provide regular updates on the progress of the share repurchase program at www.alzchem.com/en/investor-relations/stock/.

Trostberg, November 2, 2026

Alzchem Group AG

-  Managing Board  -