​Viscofan S.A (“Viscofan” or the “Company”) announces that the Board of Directors, at its meeting held on November 19, 2025 has resolved to launch a share Buy-Back Program (the “Buy-Back Program”), based on the authorization granted by the General Shareholders' Meeting held on 27 April 2023 under item 11 of the agenda.

The Buy-back Program is launched in accordance with the provisions of Regulation (EU) 596/2014 of the European Parliament and of the Council of 16 April 2014 on market abuse, and in accordance with the Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016, supplementing the Market Abuse Regulation with regard to the regulatory technical standards concerning the conditions applicable to buy-back programs and stabilization measures

The Buy-back Program will be carried out under the terms set out below:

Purpose of the Buy-Back Program. The purpose of the Buy-Back Program is to reduce the Company´s share capital through the redemption of treasury shares.

Maximum monetary amount and maximum number of shares to be acquired.  Up to 30 million euros. In no case may the number of shares to be acquired under the Buy-Back Program exceed, 500,000, approximately 1.075% of the Company's share capital as of today.

Price and volume conditions of the Buy-Back Program. The shares will be acquired at market price, in accordance with the conditions set forth in Article 3 of Regulation 2016/1052. As regards price, Viscofan will not acquire shares at a price higher than the higher of (a) the price of the last independent transaction; or (b) the highest independent bid at that time on the trading venue where the purchase is made. With respect to trading volume, the Company will not purchase more than 25% of the average daily volume of Viscofan shares on the trading center where the purchase is made, with this limit applying to the entire Buy-Back Program. The average daily volume of the Company's shares for the purposes of the above calculation will be based on the average daily volume traded in the twenty (20) business days prior to the date of each purchase.

Term of the Buy-Back Program. The Buy-Back Program will be launched on November 25, 2025, and will remain in effect until February 27, 2026 (both included). 

However, Viscofan reserves the right to terminate the Buy-Back Program if, prior to its expiration date, the Company has acquired shares under the Buy-Back Program for an acquisition price that reaches the amount of the maximum investment or the maximum number of shares authorized, or if any other circumstance makes it advisable to do so. The interruption, termination or modification of the Buy-Back Program as well as the share purchase transactions carried out thereunder shall be reported to the National Securities Market Commission in accordance with the provisions of Regulation 596/2014 and Regulation 2016/1052. Such transactions shall also be published on the Company's website in accordance with such regulations. The Buy-Back Program will be managed by Kutxabank Investment S.V., S.A., who will carry out the share acquisitions on behalf of the Company and will make all purchase decisions independently and without being influenced by Viscofan, always within the parameters described above. 

Purchases in accordance with the Buy-Back Program may be made on the Spanish Continuous Market (BME), as well as on other trading centers where the securities are traded.

Which is hereby brought to your attention in accordance with the provisions of Article 226 of Law 6/2023 of March 17 on Securities Markets and Investment Services, and related regulations.