Hüseyin Avni Metinkale completed his university education at Istanbul Technical University, Department of Business Engineering. He started his professional career as a Project Manager at Albaraka Türk Participation Bank in 1985 and then worked at Pripack Ambalaj A.Ş. as Managing Partner. As of 2001, Mr. Metinkale served as the Chairman of the Committee, Member of the Executive Board and Chairman of the Packaging Group at Yıldız Holding and worked as the General Manager of Yıldız Holding between 2008 and 2020, and as the Secretary General of the Holding's Boards of Directors between 2010 and 2020.