Adress:Maslak Mahallesi , Atatürk Oto Sanayi 55.Sokak,42 Maslak
No:2 A Blok D:301 34485 Sarıyer –İSTANBUL
Tel: 0212 335 30 96
E-Mail: yo@gyo.com.tr
Shareholder Relation Department’s Manager:Ali Akın Ekmekci
Tel: 0212 335 30 95
Fax: 0212 335 32 30
E-Mail: aekmekci@gyo.com.tr
http://www.gyo.com.tr/en/investor-relations/shareholder-relation-departments-communication.aspx