The Impact of Applying Lean Manufacturing Fundamentals on the Improvement of Manufacturing Performance: A Case Study at the Yemeni National Company for Sponge and Plastic Industry

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 by 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: cellular manufacturing; continuous improvement; automatic detection of a defect; and 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 Lean manufacturing for a direct and effective impact on Manufacturing Performance Improvement.