KARTONSAN KARTON SANAYİ VE TİCARET A.Ş. Özel Durum Açıklaması (Genel) 1 Ekim 2026

At its meeting held on 1 October 2026, the Board of Directors of our Company resolved:

to initiate a share buy-back program for the Company's shares, based on the Principle Decision No. i-SPK.22.9 (Decision No. 16/531 dated 19 March 2025) published in the Capital Markets Board's (the "Board") Bulletin No. 2025/16 dated 19 March 2025 and the Principle Decision No. i-SPK 22.9.a (Decision No. 60/1711 dated 22 September 2026) published in the Board's Bulletin No. 2026/63 dated 22 September 2026, with the aim of contributing to the healthy and stable formation of the Company's share price on Borsa İstanbul, as the Company's share price does not reflect the actual performance of the Company's activities, protecting the rights of shareholders and all stakeholders, and supporting investor confidence;

to carry out the share buy-back transactions in accordance with the provisions of the Board's Principle Decisions No. i-SPK.22.9 (Decision No. 16/531 dated 19 March 2025) and i-SPK 22.9.a (Decision No. 60/1711 dated 22 September 2026), as well as the Communiqué on Buy-Backed Shares No. II-22.1;

to determine the maximum number of shares that may be subject to the share buy-back as 1,000,000 shares, with a nominal value of TRY 1,000,000;

to determine the maximum fund to be allocated for the share buy-back as TRY 100,000,000, to be financed from the Company's equity;

to determine the duration of the share buy-back program as 1 (one) year from the date of this resolution; however, to terminate the program upon reaching the maximum number of shares subject to buy-back;

to make the necessary material event disclosures on the Public Disclosure Platform (KAP) regarding the Company's share buy-back transactions and to provide shareholders with information at the first General Assembly to be held regarding the share buy-back;

to authorize the Company's management to execute the transactions under the share buy-back program, place purchase orders on Borsa İstanbul, and determine the intermediary institution(s) deemed necessary for this purpose.

The English translation of this disclosure is attached hereto. In the event of any discrepancy between the Turkish and English versions of the disclosure, the Turkish version shall prevail.