Lean Six Sigma (LSS) is one of the most important approaches used to improve supply chain management (SCM), make it more efficient and effective, and sustain a culture of continuous improvement. The purpose of this study is to introduce a LSS framework, demonstrate its importance in improving SCM, and show how an integrated LSS-SCM approach model can improve supply chain efficiency, effectiveness, and customer satisfaction. In this context, this study focuses on developing LSS-SCM framework in a spare parts company in Egypt. This framework provides a step-by-step roadmap for improving SCM especially in manufacturing. The main results over three months were improving product quality from 85% to 89%, increasing sigma level from 2.5 to 2.7, reducing processing lead time from 645 to 370 hours/ton, improving overall equipment effectiveness (OEE) from 75% to 81%, increasing value added from 50% to 54%, and improving customer satisfaction from 87% to 89%.

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A. H. Gomaa, “Improving Supply Chain Management Using Lean Six Sigma: A Case Study,” International Journal of Applied and Physical Sciences, vol. 9, pp. 9-25, 2023. Doi: https://dx.doi.org/10.20469/ijaps.9.50002