INVESTOR RELATIONS

DISCLOSURE OF SPECIAL EVENTS

Announcement Regarding Inflation Accounting - 26012024 Resolution on Collective Labor Agreement and Withdrawal of Strike Decision - 18012024 Announcement Regarding Strike Decision - 12012024 1. Coupon Payment of the Bond With ISIN Code TRSBRSNE2415 - 02012024 Announcement Regarding Gemlik Large Diameter Pipe Production Facility - 18122023 Press Release Regarding Change in Brand Name - 29112023 Change in Board Committees - 27112023 Change in Board of Directors - 27112023 Change of Company Title - 27112023 Finalization of Transfer of Borusan Mannesmann Boru Yatırım Holding A.Ş. Shares - 27112023 9M23 Investor Presentation - 03112023 Processes Regarding Transfer of Borusan Mannesmann Boru Yatırım Holding A.Ş. Shares - 19102023 Completion of Bond Issue - 02102023 Processes Regarding Transfer of Borusan Mannesmann Boru Yatırım Holding A.Ş. Shares - 28092023 CMB Approval of the Debt Securities Issuance Certificate - 22092023 Appointment of Corporate Governance Committee Member - 06092023 Credit Rating - 31082023 Unusual Price and Volume Movements - 29082023 CMB Approval for the Amendment in Articles of Association - 23082023 Resigning of Corporate Governance Committee Member - 22082023 1H23 Investor Presentation and Berg Pipe Acquisition Presentation - 08082023 Transfer of Borusan Mannesmann Boru Yatırım Holding A.Ş. Shares - 23062023 Request for Amendment in Articles of Association and Exemption from the Exercise of Exit Right - 23062023 Board Committees and Duties of Committee Members - 16062023 Result of the Natural Gas Pipeline Tender - 15062023 Registration of Independent Audit Company - 08062023