Yohannes Workaferahu (PhD)Abera Zerihun Belew2023-12-272023-12-272021-09-07http://etd.aau.edu.et/handle/123456789/1222Recently, in the dramatically growing digital world, the management of materials plays a critical role on the performance of manufacturing companies. This study focuses on the impact of materials management on organizational performance of Walia Steel Industry PLC. Relevant data was gathered through structured questionnaire via five point Likert scale and analysis was made using SPSS version 23, so that a cross-sectional data type was used in the study. A total of 171 populations were used through census survey. The study adopted both explanatory and descriptive research designs in integration with a commonly used quantitative and qualitative research methods. The findings revealed that there was positive and significant association between effective materials management functions and organizational performance which was supported by interdepartmental collaboration among materials related departments such as inventory, procurement and storage managements. The main problems faced in materials management of the selected steel industry were weak materials management practices due to weak interdepartmental coordination of the firm. This study revealed that, in order to achieve significant cost saving, improved performance and production quality, firm competitiveness and increased profitability, priority should be given to the management of materials in Walia Steel Industry PLC. Recommendations were made for the focal firm to make the materials management system to be effective and efficient for the attainment of organizational performance through improved procurement, inventory and storage management system with better and strong collaboration. The results implied that there is a need of be aware of the functions of materials management so that the role and benefits of materials management practices should be examined and outlined for further investigationenMaterials Management, Procurement Management, Inventory Management, Storage Management, Interdepartmental Collaboration and Organizational PerformanceThesis