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Born in 1956, Mr. Hasan Dursun received his Bachelor’s Degree in Finance from Economics Faculty of Istanbul University. He started his career in Sümerbank Trading Corporation in 1977.

Worked as a cambist in Istanbul Exchange Office of Turkish Central Bank, Mr. Hasan Dursun served as auditor at Türkiye İmar Bankası T.A.Ş and Deva Holding as well as Credit Vice President at General Directorate of Tütün Bank.

He served as branch director at various financial instutions such as Faisal Finans Kurumu, Anadolu Finans Kurumu A.Ş., Albaraka Türk Katılım Bankası A.Ş for long years. He served as Management Advisor at Albaraka Türk A.Ş. between October 2017 and March 2018.  He was Board Member of Bereket Emeklilik ve Hayat A.Ş. between 2017 and 2018, and Board Member of Ziraat Katılım Bankası between 2020 and 2022. A member of MUSIAD since 1995, Mr. Dursun was Member of Membership Admission and Organization Committee at MUSIAD Head Office for 11 years.

Real Estate Consultant at Ertemeller İnşaat Gayrimenkul Danışmanlık LTD ŞTİ. Mr. Hasan Dursun started his duty as Independent Board Member of GÜBRETAŞ on 19 August 2022.

Received his Bachelor’s Degree in Business Administration (English) from Istanbul University in 2005, Yasin Ayaz completed his Graduate Program “Industrial R&D and Technology Management” in Warwick University.

He took part as a Senior Auditor in independent audit projects of the local and international companies at Deloitte Turkey office from 2005 to 2009.

He served as Senior Analyst at Financial Decision Support units of Vodafone and Türk Telekom-Avea companies between 2009 and 2011, and project manager responsible for subsidiaries in Türk Hava Yolları A.O. and Chief Financial Officer of MNG Teknik A.Ş. and THY Teknik A.Ş., subsidiaries of the group, between 2011 and 2016.

Providing consultancy services in various companies in aviation industry between 2016 and 2019, Mr. Yasin Ayaz served as Corporate Finance Director of Istanbul Airport in 2019, and has been serving as Vice President for financial affairs global operations at Q Food & Beverage Group in the food & beverage industry since 2019.

Holding Capital Market Corporate Management Rating license and Certified Public Accountant (SMMM) license, Mr. Ayaz continues his service as President of Finance Group at Tarım Kredi Holding as of September 2021.

Mr. Yasin Ayaz started to serve as Vice Chairman of GÜBRETAŞ on 3 August 2022.

Aytaç Onkun was born in Gaziantep in 1974. He completed his undergraduate education in Anadolu University Faculty of Business Administration-Management Organization Department in 1998 and his graduate education in Toros University Faculty of Business Administration Social Sciences Institute in 2016.

In 1996, he started to work as a civil servant in Büyükşahinbey Agricultural Credit Cooperative affiliated to Gaziantep Regional Union of Agricultural Credit Cooperatives.

Appointed to Mersin Regional Union in 1997, Onkun worked in Erzin, Aydıncık and Anamur Agricultural Credit Cooperatives, respectively.

He was appointed as Director in 2008, Deputy Regional Director of Mersin Regional Union in 2012 and as Regional Manager.

Being appointed as Director in 2008 and then as Deputy Regional Manager of Mersin Regional Union and he afterwards worked as the Regional Manager Şanlıurfa Regional Union by 2019.

Mr. Onkun was appointed as a Member of the Board of Directors and General Manager (acting) on 10 June 2022.