Kozanlar was established as a sanitary installation company in 1992, made a name for itself with heating in 1996 and solar energy works in 1998. In 1999, with its submersible pump in regional dealerships and in 2000 with its national brand, DGİ Flat Entry Stations became a company known throughout the country. Added the construction sector to its activities in 2006 such as hotels, factories, corporate housing, congress centers, automobile showroom projects in its region. In 2010, it carried out important projects in the geothermal heating and greenhouse heating sector, and DGI Flat Entry Stations are safely used in thousands of residences across the country.