The Celebratory Event commemorating the 25th Anniversary of the founding of DOSİDER (the Natural Gas Equipment Manufacturers And Businessmen Association) of which we are a member, was held on 8 December 2018, a Saturday in Istanbul, hosted by the Chairman of Our Board of Directors, Mr. Ömer Cihad Vardan, with the attendance of Mr. Fatih DÖNMEZ, Minister of Energy and Natural Resources; Mr. Mustafa Yılmaz, Chairman of the Energy Market Regulatory Authority; Assistant Professor Ms. Hatice Karahan, PhD who is a Member of the Presidential Economic Policies Committee; Mr. Yaşar Arslan, Chairman of GAZBİR (the Natural Gas Distribution Companies Association of Turkey); Mr. Ali İhsan Sılkım, General Director of İGDAŞ; Mr. Mustafa Ali Akman, General Director of GAZMER; as well as our members, representatives from universities and from the world of business, and many members of the press.