Executive Board of TSI Seats

Abdulkerim Çay

Abdulkerim Çay
Chairman of the Executive Board

Born in 1981 in Amasya, Turkey, Abdulkerim Çay holds a degree in Political Science and International Relations from Boğaziçi University in Istanbul.

Beginning his professional career in the Prime Ministry of Turkey as a Press and Public Relations Advisor in 2004, Çay took part in the establishment of the Prime Ministry Investment Support and Promotion Agency of Turkey (ISPAT) in 2006 where he held senior positions including Vice Presidency until he left for private sector in 2010.

Çay served as an executive in various companies before assuming the position of Chief Human Resources Officer at Turkish Airlines in April, 2015. He also currently serves as a member of the Board Directors of Aydın Çıldır Airport and the Board of Directors of Turkish Cabin Interior-TCI

Fluent in English and beginner in Arabic and French, Çay is married with four kids.


Haluk Kayabaşı

Haluk Kayabaşı
Vice President of the Executive Board

Mr. Kayabaşı, born in Kayseri in 1957, completed his undergraduate studies in 1980 at Marmara University in the Faculty of Business Administration.

Starting from 1981, he has taken up positions such as Imports Assistant Specialist, Imports Specialist, Imports Deputy Director, Imports Director, and Foreign Trade Director in the Imports Department of Assan Demir ve Sac Sanayi A.Ş. Having worked as the Foreign Trade Coordinator at Kibar Holding from 1998 onwards, Haluk Kayabaşı was appointed as a member of the Executive Board of Kibar Holding, and took up the position of Group Director of Metal in the holding starting from May 2012.

In addition to being the Vice President of the Executive Board at TSI Seats, he was appointed as the COO of Kibar Holding in April 2014. Haluk Kayabaşı, who served as the General Manager of Assan Alüminyum between 12.10.2015 and 19.07.2016, is serving as the CEO of Kibar Holding by with all of his other duties as of April 2018.


Ebubekir Akgül

Zekeriya Demir 
Member of the Executive Board

Having graduated from Anadolu University, Faculty of Economics and Administrative Sciences - Department of Economics in 1992, Demir completed his Masters in Economics in 1995 and his PhD in Economics in 2004 at Marmara University.

Dr. Zekeriya Demir started his career in 1996 as an Auditor at Sahra YMM, a CPA company. He served as Internal Auditor and Shipping Operations General Manager at Gürsoy Group Companies between 2000-2006. He worked as the Financial Affairs Director at Türker Group of Companies between 2006-2007. Appointed by the TMSF (SDIF), Dr. Demir also served as a Member of the Supervisory Board at Nergis Holding and its affiliated companies between 2005-2008.Dr. Demir worked as an Assistant Professor and Deputy Dean at Kırklareli University, Faculty of Economics and Administrative Sciences, Department of Business Administration between 2009 - 2015. He worked as the Financial Affairs Manager at STM Defence Technologies Engineering and Trade Inc., an affiliate of Undersecretariat of Defence Industries in 2015 – 2016.In August 2016, Dr. Demir was appointed as the SVP of Accounting and Financial Control department. As of April 2022, he has been appointed as Chief Financial Officer of Turkish Technic.Demir, who is a Certified Public Accountant and Independent Auditor, served as a Board Member of the Istanbul Chamber of Certified Public Accountants between 2013 and 2016. Continuing his academic studies, Demir has been publishing papers presented in national and international congresses and articles released in various journals. Dr. Demir speaks English fluently.

Ş.Gökhan Lokmanoğlu

Ş. Gökhan Lokmanoğlu
Member of the Executive Board

Born in Ankara in 1973, Gökhan Lokmanoğlu graduated from the Mechanical Engineering Department at Istanbul Technical University.

Starting his career at the Investment Department in Assan Aluminum in 1996, Gökhan Lokmanoğlu was appointed as the Investment Development Director at Assan Aluminum in 2007, as the Investment Director at Kibar Holding in 2010, as the Vice President of Technical Investments at Kibar Holding in May 2012; and as the Vice President of Strategy and Bussiness Development in May 2014 at Kibar Holding. Gökhan Lokmanoğlu has been serving as Kibar Holding Executive Vice President of Corporate Development since August 2016.


Atacan Güner

Sabri Tütüncü
Member of the Executive Board

Born in 1969, M. Sabri Tütüncü completed his MBA program at the University of Leicester after graduating from East Mediterranean University Faculty Business Administration.

Tütüncü started his business life in 1994 and served as the Head of Corporate Loans and Project Finance Department at Akbank T.A.Ş as his last occupation.

In November 2012, he was appointed as the Head of Finance Department at Kibar Holding, and on 23 February 2015, he has been appointed as Kibar Holding CFO (Chief Financial Officer).