Cengiz Holding A.S. is a Turkish conglomerate, with major interests in construction, energy, mining, and tourism. Its assets include the Eti Copper and Eti Aluminium mining companies.^[1] It is owned by Mehmet Cengiz.^[2] In 2012 it had around $470m revenue from construction.^[3]

In May 2013 it was part of a joint venture which won the EUR22bn contract to construct a third international airport in Istanbul.^[4] In July 2013 it was part of a joint venture which acquired the daily newspaper Akşam, together with TV channel Sky Turk 360 and radio station Alem FM, for TL60m.^[5]

Climate Trace estimates half-owned Cenal coal-fired power plant emitted over 7 million tons of the country’s total 730 million tons of greenhouse gas in 2022.^[6] So it is on the Urgewald Global Coal Exit List.^[7]

The company says that "Emissions at the [aluminium] production units in Seydişehir are already 50% lower than European Union standards",^[8] however it still runs a small coal-fired power station at that factory.