1935
• Operation of Murgul Mine Facilities were started by MTA
1937
• Murgul Mine Facilities were turned over to Eti Bank
1939
• Küre Mine Facilities were incorporated with MTA
1947
• Halıköy Antimony Mine Facilities were established to produce mercury.
1951
• Operations of Murgul Mine Facilities started by Eti Bank.
1968
• The first fire up of Samsun Smelter flash furnace took place.
1973
• The first fire up of Samsun Smelter flash furnace took place.
1974
• Mazıdağı Mine Facilities were established by Eti Bank.
1975
• Samsun Sulphuric Acid Facilities started to produce.
1977
• Halıköy Antimony Mine Facilities were turned over to Eti Bank.
1979
• Eti Bank started to reoperate Halıköy y Mine Facilities.
1983
• Murgul Mine Facilities were incorporated with K.B.I. Belongs to Eti Bank
1987
• The Concentrator build up at Kure Mine Facilities was finished and Copper concentrate prodcution started.
1988
• Mazıdağı Mine Facilities’ operations started.
1994
• Mazıdağı Mine Facilities’ operations stopped.
1998
• Küre Mine Facilities’ operations started under Eti Bakir A.Ş.
2004
• Samsun Smelter and Küre Plant were acquired by Cengiz Holding.
2005
• Samsun Smelter’s and Küre Plant’s operations continued under Eti Bakır A.Ş. Belongs to Cengiz Holding.
2006
• Murgul Plant was acquired by Cengiz Holding.
• Murgul Plant’s operations continued under Eti Bakır A.Ş. Belongs to Cengiz Holding.
2007
• Halıköy Plant was acquired by Cengiz Holding.
• Halıköy Plant’s operations continued under Eti Bakır A.Ş. Belongs to Cengiz Holding.
2008
• The modernization works of Eti Bakır Co. Samsun Smelter and electroylisis build up were began.
2010
• The capacity increase works of Eti Copper Co. Murgul 20 MW Hydroelectric Power Plant was finished.
2011
• The modernization works of Eti Bakır Co. Samsun Smelter and electroylisis build up were finished.
• Eti Copper Co. Samsun Smelter Electrolysis build up was finished and copper cathode production and sales started.
• Mazıdağı Mine Facilities were acquired by Cengiz Holding.
• The facility investments for Amonium Sulphate Fertilizer took place at Eti Bakır Co. Samsun Plant.
2012
• Mazıdağı mine facilities’ operations restarted.
2013
• Mazıdağı Mine Facilities were turned over to Eti Bakır A.Ş. Belongs to Cengiz Holding.
• Total fertilizer facility build up investments at Mazıdağı plant started.
2018
• Mazıdağı Phosphate Plant in Mardin is to commence service as a fertilizer plant with an investment of USD 1.1 billion.