The brand "Dekor" has its roots in 1964 with the demands of Ahmet and Dilaver HASDEMIR brother`s friends on the hand tools they had designed for his own use. Coming from Kayseri to Istanbul, he started working at little ages as head dyer at the constructions. The little shop, which started to its business life with single type manufacturing method at the basement of an apartment on the second half of the 20th century, entered the 21st century as an integrated group company under the name of HASSAN Group after a difficult and enduring industrial transformation process. Thanks to its successful business practices, HASSAN, an indoor area of 21.000 square meters, which has a share of 80% at home market with more than 400 product range, became popular not only at the national range, but also at the international marketing area with the export it has made to 60 countries in 4 continent.