Yella d aselmad deg tesnawit Ḥafsa d tin n Debbiḥ n Uqbu seg 1978 ar 1983 maca setaxrent maca seg useggas n 1955 ar tizi n wass-a d aselmad n tmaziɣt deg uɣerbaz amezwaru, Malek Hud seg yiselmaden n tmaziɣt imazwura, akken yexdem asileɣ (formation en petrochimie lINHC) di Bumerdas deg useggas n 1973.