Board of Directors Message From The General Manager Executive Committee

Burak Orhun

Chair

Burak Orhun holds a Bachelor’s degree in Economics from Boğaziçi University, a Master’s degree in Finance (MSF) from George Washington University, and an MBA from the University of Pennsylvania-Wharton Business School. Having started his professional career as a Financial Planning and Analysis Specialist at Mercedes Benz Türk A.Ş. Burak Orhun worked as a Finance Manager at Thomson Corporation (Reuters), Director of Portfolio Management at CapitalOne Financial, as well as Director of Corporate Development, and Assistant General Manager of Financial Affairs at CadenceQuest, Inc. in the USA.

Burak Orhun served as the General Manager of Oyak Venture Consultancy, responsible for all M&A projects of Oyak Group between 2009 and 2018. Concurrently, he served as Senior Manager, Executive Director, and Chair of the Board of Directors at Oyak Group’s Domestic and Foreign Chemical and Energy Companies. In 2018, he joined Sabancı Group. Burak Orhun is currently the Head of the Strategy and Business Development Department at Sabancı Holding. In addition, Burak Orhun was appointed Sabancı Holding Building Materials Group President on 12 May 2021.

LEADER

Hakan Gürdal

Vice Chair

Şebnem Önder

Board Member

René Aldach

Board Member

Bülent Bozdoğan

Board Member (Independent)

Ali Aynacı

Board Member (Independent)

DIRECTORS

Şebnem Önder

Board Member

Şebnem Önder graduated from Ankara University Faculty of Law in 1994. She started her career as a lawyer at White & Case LLP (Türkiye) in 1994 and continued to work in the same position between 1999-2000 in the New York office where the firm is headquartered. Subsequently, she worked as a Partner in the Türkiye unit of the same company between 2000 and 2014. In 2014, Ms. Önder started to work as the Legal Director for British American Tobacco (Türkiye & North Africa), and since 2018, she has been the Regional Head of Compliance for Europe. She was appointed the Head of the Legal, Risk, and Compliance Department at Sabancı Holding in September 2022.

René Aldach

Board Member

René Aldach completed his studies in Business Administration at the Westfälische-Wilhelms-Universität Münster with a university diploma degree in Business Administration. René Aldach started his career at Heidelberg Materials in 2004. In 2015, he was appointed Chief Financial Officer of the Australian joint venture Cement Australia. In 2018, he assumed financial responsibility for the entire Australian country organisation as Chief Financial Officer Hanson and Board Director for Hanson & Cement Australia. Since September 2020, René Aldach has been responsible for the entire accounting, controlling, and reporting of Heidelberg Materials Group as Director Group Reporting, Controlling & Consolidation. Since 1 September 2021, René Aldach has been Chief Financial Officer of Heidelberg Materials. As of January 2024, René Aldach is also responsible for Heidelberg Materials business in Australia.

Bülent Bozdoğan

Board Member (Independent)

Bülent Bozdoğan was born in 1956. After graduating from Middle East Technical University, Department of Business Administration, he joined PwC as a Senior Auditor in 1980. From 1982 to 1991, he worked as a Manager in various commercial and financial departments of Unilever Türkiye. In October 1991, he joined Brisa Bridgestone Tire Co., a joint venture between Sabancı Holding and Bridgestone Japan, as Assistant General Manager in charge of Finance, Planning, and Control. In January 2001, he continued his career as Global CFO and Vice President at KordSA Global A.Ş., a joint venture between DuPont USA and Sabancı Group. In 2009, he started work as the Chief Audit Manager responsible for the auditing of 20 different group companies of Sabancı Holding A.Ş. and managed and coordinated the audit teams of each company. Bülent Bozdoğan retired at the age of 62 in accordance with Sabancı Holding’s internal regulations after 26 years at Sabancı. In January 2018, he took office as the CEO responsible for Mining and Tourism Operations at Dedeman Holding for 2 years and resigned when his term was complete. As of July 2020, he has worked as an Independent Board Member and Head of Auditing at Borusan Mannessman Boru A.Ş., a Turkish-German joint venture, and he still holds this position. In October 2020, he became an Independent Board Member at Kordsa Indonesia, and in September 2021, he became an Independent Board Member at CarrefourSA.