Investor Presentaiton

INCREASING STAKEHOLDER VALUE THROUGH GROWTH ORIENTED INVESTMENTS 75% Global Market* Revenue Share Şimdi Borusan'ın büyüklüğünden herkes kendine pay çıkarabilir. 1976 Gemlik ERW Pipe Facility commenced operations 1994 BORUSAN Borusan Boru A.Ş. shares started to be traded on BIST 2001 Borusan Mannesmann Vobarno Tubi S.p.A.; the first company abroad has been acquired 2011 Gemlik HSAW Pipe Facility commenced operations 2014 OCTG Pipe Facility in Houston constructed with a $150 mln investment, has commenced operations 2019 Gemlik Automotive Pipe Line established 2021 Germany Commercial Office has been launched $1.3 billion 2023 Berg Pipe's LSAW (1979) Facility in, Florida and HSAW (2007) Facility in Alabama acquired for $162 mln $50 million 2023 SRM investment, which is worth $50 m In, continues in US, Baytown 1968 Halkalı ERW Pipe Facility commenced operations 1958 Borusan 1979 Boru has been 1969 First export has Borusan started seaborne trade established been realized 2004 The Company has 1998 Borusan and Mannesmann merged their pipe operations in Turkey been titled as Borusan Mannesman 4 * Represents total revenue generated from all products manufactured in facilities abroad and exported from Turkey. 2016 Bursa Service Center serving for the automotive segment established 2022 BMB revenues reached to $1.3 billion 2023 Romania Service Center investment, which is worth €15 min, continues BORUSAN MANNESMANN

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