1980

  • The 1st Stage of Ankara-Çankaya Housing Project was completed and delivered to the members.
  • Partnership in TPAO (Turkish Petroleum) was terminated.

1979

  • The last group of the 1st Stage of İstanbul-Kozyatağı Housing Project was completed and delivered to the members.
  • Houses in the 3rd Stage of İstanbul-Göztepe project were delivered to the members. 

1978

  • The first group of the 1st Stage of İstanbul-Kozyatağı Housing Project was completed and delivered to the members.
  • The process was initiated in relation to the 2nd Stage of İstanbul-Kozyatağı and the 1st Stage of İzmir-Üçkuyular housing projects. 
  • OMSAN Otomotiv Mamulleri Sanayi T.A.Ş. (the current OMSAN Lojistik) was established.
  • OYAK contributed to the establishment of the subsidiaries of OYAK-Kutlutaş Holding.

1977

  • Majority of the 3rd Stage of İstanbul-Göztepe housing project was completed and delivered to the members.
  • A housing project composed of 7 blocks was initiated in Ankara-Çankaya.
  • OYAK became a partner in OYAK-Kutlutaş Konut Holding A.Ş.
  • OYAK became a partner in Ağır Döküm ve Otomotiv San ve Tic. A.Ş. (ADSAŞ). 

1976

  • The 1st Stage of İstanbul-Kozyatağı housing project was initiated. 

1975

  • The 3rd Stage of İstanbul-Göztepe housing project was initiated.
  • Construction of İstanbul Etap Hotel was completed.
  • OYAK became a partner in Aselsan which marked a milestone in Turkish electronics industry.
  • Mardin Çimento factory was set into operation.
  • OYAK Sigorta started engaging in activities in the branch of “life”. 

1974

  • The 3rd Stage of İstanbul-Yenilevent Housing Project was completed and delivered to the members.
  • OYAK Yatırım ve Holding A.Ş. (the current OYTAŞ) was established.

1973

  • An ILO actuary was assigned to examine the continuation of relations with OYAK after the retirement of members for the first time this year. These activities formed the basis of the current Pension System.

1972

  • In line with the requests received from members, a pre-paid saving system was embraced, facilities were provided for members in purchasing cars, the terms and conditions of sales were created and announced to members.  

1971

  • The 2nd Stage of İstanbul-Göztepe Housing Project was completed and delivered to the members.
  • The 3rd Stage of İstanbul-Yenilevent housing project was initiated.
  • Manufacturing of the model “Renault-12” was launched in the factories of OYAK Renault.