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Management

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Executive Leadership Team

İbrahim Özgür Yıldırım
CEO

İbrahim Özgür Yıldırım holds a bachelor's degree in Chemical Engineering from Middle East Technical University and an MBA degree from Sabancı University. In 1998, he joined the Sabancı group and following the merger of Kordsa - Sakosa, he was appointed as Technical Manager in 2007 after taking various positions in the Technical and Production Departments. Between 2008 and 2013, he continued his career as the New Product and Process Development Management at the R&D Center. Joining the Executive Leadership Team in 2013 as Technology and Market Development Vice President, Yildirim played a major role in the development of the innovation culture at Kordsa. Yildirim, who has significantly contributed to the establishment of Construction and Composite Business Units at Kordsa since 2014, has also played a key part as the Composite Business Unit Leader during the establishment of the Composite Technologies Center of Excellence (CTCE), which is a business model for Industry-University cooperation in the field of composites in Turkey.

Since 2017, he has been assuming Chief Operating Officer role in the following regions of South America; Europe, Middle East and Africa (EMEA), and Asia Pacific (APAC). As of 1^st of April 2022, Yıldırım was appointed as CEO.

- CEO

Abdülkadir Toplu
Chief Operating Officer, North America

Abdülkadir Toplu received his BSc degree from Middle East Technical University, Department of Mechanical Engineering in 1993. Starting his professional life at Insa in 1995, he joined Kordsa as mechanical engineer in 1996. He served as production manager in yarn production line-2 (2003-2005), production manager at yarn production line-1 (2005-2006) and production manager in PET production (2006-2009). In 2009, Mr. Toplu was appointed as Operations Director, Kordsa Brasil. He and since January 2012 he has been working as Operations Director, Interkordsa. He was the Operations Director of Interkordsa and Kordsa Turkey between 2012-2015. Serving as Global Supply Chain Director from 2015 to 2017, he was Chief Operating Officer - Europe, Middle East, Africa (EMEA) between 2017-2018. Mr. Toplu has been the Chief Operating Officer – North and South America since July 2018.

- Chief Operating Officer, North America

Deniz Korkmaz
COO, Composites North America

Deniz Korkmaz graduated from Middle East Technical University Department of Chemistry in 1996 and received her MSc. and Ph.D. degrees from the same department 1998 and 2006, respectively. She started her professional career at Middle East Technical University as Research Assistant in 1996. She worked as Postdoctoral Research Fellow at City University of New York between 2004 - 2006. She joined Kordsa as R&D Laboratory Leader in 2008. She worked as Platform Leader, Research & Labs between 2011 - 2013. She was assigned as Platform Leader, Composite Reinforcement between 2013-2018. Ms. Korkmaz assumed the position of Composite Technologies Director, EMEA in 2018 and continued this duty until September 2021. As of September 1, 2021, she was appointed as Chief Technology Officer.

- COO, Composites North America

Doğan Sevim
Chief Global Sales and Marketing Officer

Doğan Sevim received a Bachelor of Science degree in Mechanical Engineering from Istanbul Technical University and his Master of Science degree in Computational Mechanics from the Technical University of Munich in 2006 and 2008, respectively. He started his professional career at Kordsa as Project Leader in Global R&D Center in 2009. During his assignment, he obtained various patents and publish articles. He was appointed as Technical and Quality Assurance Group Manager in Kordsa’s Thailand Facility in 2013. Throughout his assignment, he completed customer approval studies successfully. He started the Technical and Quality Assurance Group Manager - Asia Pacific position in 2014. In this role, he managed new customer approvals in Kordsa’s Indonesian subsidiary which was growing with new investments. He completed Harvard Business School General Management Program in 2017. He assumed the Global Account Manager role between 2017 and 2022. As of September 1, 2022, He was appointed as Chief Global Sales and Marketing Officer.

- Chief Global Sales and Marketing Officer

Hüseyin Ateş
Chief Technology Officer, CTO

Hüseyin Ateş started his professional life at Bosch Siemens Home Appliances in Munich as “Research Assistant” in 2006. He joined to Munich Technical University as “Research Assistant” in 2007 and executed Post Graduate Project at BMW R&D Center during 2007. He started to work at CRH Group as “Senior Project Engineer” in 2008. Hüseyin joined Kordsa Global Technology and Market Development Function as “Project Leader” in April 2010. He started to work as “Nylon Greige Fabric Production Manager, Kordsa Turkey” in 2014. He worked as “Manufacturing Group Manager, Kordsa Brasil” between 2015-2020 and Hüseyin assigned as “Operational Excellence Officer” in 2020. He was appointed as “Business Excellence Officer and COO of Axiom Materials” in 2022 and assumed his role up until now.

- Chief Technology Officer, CTO

Levent Akpulat
Chief Supply Chain Officer & Construction Bus. Unit Leader

Akpulat received his bachelor's degree in Business Administration fromMiddle East Technical University in 1990 and his MBA degree from Sabancı University in 2005. He started his professional career in Brisa in 1992, worked in various senior positions in Brisa between 1992-2016, and finally served as Deputy General Manager of Marketing at Brisa. Akpulat, who joined Temsa Motorlu Araçlar team as General Manager in 2017, was appointed as Çimsa Gray Cement Marketing and Sales Deputy General Manager in April 2020 and continued this duty until October 14, 2020. Akpulat has been appointed as Chief Global Sales and Market Development Officer as of October 2020.

- Chief Supply Chain Officer & Construction Bus. Unit Leader

Eray Karaduman
Chief Human Resources And Corporate Communication

Eray Karaduman, received his BSc degree in Economics from Çukurova University in 1999 and MSc degree from the same university in 2004. He started his professional career in 1999 and joined Sabancı Group in 2002, worked in Bossa and Temsa HR teams between 2002 and 2007. After working in Frito Lay as Human Resources Manager between 2007 and 2009, he joined Enerjisa as Human Resources Manager and keep that position until 2012. Thereafter, He worked in Coca-Cola Beverages Company as Group Human Resources and Industrial Relations Director. He joined Unilever in 2015 as Human Resources Director for Supply Chain responsible for North Africa, Middle East, Turkey, Iran, Central Asia and Russia countries and double hatted Global Supply Chain HR Lead position for Sustainable Employment Project and served as Sales and Marketing Human Resources Director, to which he was appointed in 2019, until August 2020. Mr. Karaduman has been appointed as Kordsa Deputy General Manager, Human Resources, Law and Corporate Communications as of September 1, 2020.

- Chief Human Resources And Corporate Communication

Mehmet İlker ÇALIŞKAN
Chief Strategy, Business Development & Integration Officer

Graduated from Marmara University Faculty of Business Administration, Department of Accounting and Finance, İlker Çalışkan started his professional career at Deloitte as an accountant in 1993 and after several positions in İstanbul and London Office was assigned as Senior Audit Manager assuming his role until 2003. He worked at Family Financial Institution as Financial Controller between 2003 and 2005. İlker Çalışkan joined NETAŞ Telecommunication in 2005 as Finance Director. He continued his career as Chief Financial Officer between 2008 and 2019. In addition to this role he assumed Deputy Chairman of the Executive Board role as double hatted in 2019 and represented Netaş as a Board Member in Netaş subsidiaries. He is a Certified Public Accountant. İlker Çalışkan joined Kordsa as of 4th of October 2021 as “Chief Strategy and Business Development Officer".

- Chief Strategy, Business Development & Integration Officer

Müge Yenmez
Chief Operating Officer, EMEA Composites

Müge Arifoğlu Yenmez received her undergraduate and graduate degrees from the Department of Chemical Engineering at Middle East Technical University in 2002 and 2004, respectively. In 2015, she completed the executive development program at Sabancı University. Yenmez, started her professional career as a Research Assistant at Middle East Technical University in 2002 and she continued this role as a research assistant at Istanbul Technical University in 2006. Joining Kordsa as a Product Development Engineer in 2006, Yenmez worked as a Project Leader in R&D between 2007 and 2011. She worked as the Application Development Manager responsible for the commercialization of new products in the Market Development Department between 2011 and 2012, and as the Sales Manager between 2012 and 2013, undertook different duties in the Marketing Department between 2013-2016. Yenmez, who assumed the roles of Tire Reinforcement Platform Leadership in R&D between 2016-2017 and Market Development Group Manager between 2017-2021, continued as R&D Director until September 2022, when she was appointed in 2021. Yenmez has been appointed as Assistant General Manager, Composites, Europe, Middle East, and Africa as of September 1, 2022.

- Chief Operating Officer, EMEA Composites

Ömür Menteş
Chief Operating Officer, APAC

Ömür Menteş, started his professional career at Mercedes-Benz Turkey as Research and Development Engineer. Between 1998-2008, Ömür worked at Beksa for Wire Products and Steel Cord and he hold Wire Products Sales Engineer, Wire Products Sales Manager, Steel Cord Production Manager, Steel Cord Marketing and Sales Manager roles respectively. He coordinated SA15+ as Process Management Committee Leader on behalf of Beksa. He attended INSEAD-Sabancı "Leadership and Value Based Management" programs. Following his role as System Development Manager in 2008, Ömür has been assigned to Bekaert Shanghai and took the roles as Global Account Manager and International Customers - Sales Director (Asia North) respectively. In 2012, he assumed Regional Marketing and Sales Director role of SEA in Bekaert Singapore. Since 2015, Ömür also held the responsibility of Global Account Manager (Sumitomo and Yokohama). He also has completed INSEAD "Driving Value Through Business Acumen" program in 2018. Between 2018-2019, he assumed his consultant role regarding recruitment, assessment and sales performance in Singapore. Ömür joined Kordsa in June 2019 as Sales Group Manager, APAC. As of April 1st, 2022, Ömür Menteş, holding “Sales Group Manager, APAC” is assigned as “Chief Operating Officer, Asia Pacific”.

- Chief Operating Officer, APAC

Salih Kahraman
Chief Operating Officer, EMEA

Salih Kahraman graduated from the Middle East Technical University, Department of Chemical Engineering in 2006, and attended the Sabancı University Executive Development program between 2010-11. Salih Kahraman, started his career as a Technical Engineer at Kordsa Turkey facilities in 2007, after his role between 2007-2011; between 2011 and 2015, he served as Technical Manager at Kordsa Brazil facilities. After being appointed as Production Manager at Kordsa Turkey facilities in 2015, he assumed the positions of Quality and Technical Group Manager between 2016-2020 and EMEA Sales Group Manager between 2020-2022, respectively. As of September 1, 2022, Kahraman has been appointed as Assistant General Manager, in Europe, the Middle East, and Africa (EMEA).

- Chief Operating Officer, EMEA

Volkan Özkan
Chief Finance Officer

Volkan Özkan graduated from Istanbul Technical University, Department of Business Engineering. He started his professional career at JICA in 2001, as Project Assistant. He joined Kordsa in 2003 and served as Financial Affairs Specialist between 2003-2009. He worked as the Finance Manager between 2009-2011 and Global Finance Manager between 2011-2014. Özkan, who served as the Finance Director of the Indonesian subsidiary IndoKordsa between 2014 and 2017, was appointed as Deputy General Manager-Finance in October 2017, and continued this duty until October 15, 2020. As of October 15, 2020, he was appointed as Deputy General Manager- Europe, Middle East and Africa (EMEA).

- Chief Finance Officer

João Augusto dos Santos
Chief Operating Officer, South America

João Augusto dos Santos received his BSc degree from Bahia Federal University (UFBA), Chemical Engineering in 1997, his MBA from Getulio Vargas Foundation (FGV), Business Management in 2007 and his MBA from Getulio Vargas Foundation (FGV), Corporate Finance in 2016. He started his professional career in Ambev as Production Engineer in 1997. In 2001, he joined Kordsa Brasil as Dipping Engineer and 4 years later was promoted as TCF and Utilities Leader. He joined Braskem in 2008 as Production Engineer, and he led operating area and customer relationship management. He rejoined Kordsa Brasil as Manufacturing Director in January 2012. In 2014, he has been assigned South America operations director and starting from September 2022 he has been serving as Chief operating officer South America.

- Chief Operating Officer, South America

Management

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