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Abstract
The study aimed at investigating the impact of applying lean manufacturing fundamentals on the improvement of manufacturing performance at the Yemeni National Company for Sponge and Plastic Industry (NCSPI). The study adopted the descriptive and analytical approach through using the case study method. A questionnaire was used for collecting data. After analyzing the data, the study findings revealed that there was a significant positive effect for the application of the lean manufacturing fundamentals on improving the manufacturing Performance in the Yemeni National Company for Sponge and Plastic Industry. The fundamentals were ranked in this order: the Cellular Manufacturing; Continuous Improvement; Automatic Detection of Defect; and the Workplace Organization. The study recommended that the Yemeni National Company for Sponge and Plastic Industry should give more care to achieve the integration of all Fundamentals of the Lean manufacturing for a direct and effective impact on Manufacturing Performance Improvement.
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Copyright (c) 2020 Ali Mohammad Abd Aljbar Alhmiari, Abdulwahab Abdulhameed Mohammed Saif Albaheery

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