1964 Sebahattin, İzzettin and Şerafettin Yörük founded in Ankara the Yörükler Ltd Şti
1969 Olive production is started.
1970 Cheese production is started.
1975 An Ice Workshop was purchased in Maltepe and a wide-range cheese purchase and sale was started.
1979 A diary purchased in Susurluk.
1984 On an area of 56.000 square meters in Susurluk (50.000 sq. m. open area, 6.000 sq. m. closed area) a diary products factory was activated. Yörsan A.Ş. was established in the same year.
1985 For the first time pasteurized milk production and culture cheese was started.
1996 A dealership system was established and dealerships were established throughout the country.
1999 The foundations of a new factory in Susurluk were laid down.
2002 The latest technology has been applied to the integrated milk and diary products factory in Susurluk and it started service as one of the biggest cheese factories in Turkey.