This research drives at preparing an accounting framework for rationalizing costs of sustainable development through using cost strategic management approaches, classifying the used cost system for rationalizing costs in these plants; examining as well the nature of relationship between using modern approaches for cost strategic management and cost rationalization of sustainable development in addition to studying of the cost rationalization role in achieving the competitive advantage of plants and its assisting role in strategic decision-making.
This research methodology counts on the inductive method as it aims to prepare a theoretical framework for the study, forming the problem, and hypotheses. It also uses the deductive method that drives at designing an investigation form works as the study tool using Likert Quinary Scale. The study population is represented in workers in cement plants and red bricks plants. It consists of (155) items. Reliability and convenience of variables is tested and designing, counting Alpha value of investigation variables. Values have achieved more than (<0.85), indicating harmony and matching of variables. The researcher has calculated validity of internal consistency of the coefficient correlation between all axes and total of the investigation. The coefficient correlation values indicate a significant statistical correlation at (0.05) significance level.
The most important results indicate a significant relationship exists between using cost rationalization of sustainable development and achieving the competitive advantage either on the national level or the international on one hand and assisting in making strategic decision on the other hand. The most important recommendation of this research reflected in the necessity for considering cost rationalization of sustainable development through following cost strategic management approaches and considering the proposed framework of rationalizing costs in every cement and red bricks plants.