Glasstech Refractory

GTR is a Technological Project Execution company that delivers installation, commissioning, maintenance, and specialized consultancy services for process furnaces—the core of production lines—across industries where melting technology is vital, including glass, petrochemicals, iron & steel, aluminum, soda-lime, and solid waste. With over 25 years of industry experience, it strengthens its market leadership in Turkey while continuing steady growth across the EMEA region. Technological steel equipment is designed and manufactured in its facilities according to project-specific requirements, and the entire process—installation, assembly, commissioning, and testing—is managed directly at the project site. Since 2012 GTR has supplied structural furnace steel for projects in Dagestan, South Africa, Brazil and Nigeria. Founded in 1998 by Hasan Zaza in Istanbul, GTR is today managed by second-generation leaders İpek Zaza Çetin and Altan Zaza. To date the company has completed more than 80 industrial furnace installations, and in 2017 became the first ISO-certified company among furnace contractors in Turkey.