Enhancing Supply Chain Performance: Strategies for Material Waste Reduction and Process Efficiency Enhancement

This paper analyzes lean manufacturing approaches to improve operational efficiency and minimize waste in a South African sugar packaging company. Facing challenges in waste reduction and efficiency, the study applied the DMAIC technique, using tools like the Ishikawa diagrams to delve into waste reduction. Actions were prioritized with matrix prioritization, leading to a strategy that significantly reduced waste, especially in the 500 g Stock Keeping Units (SKU’s). Despite obstacles with 1 kg SKUs, the DMAIC framework improved efficiency from $\mathbf{7 0 \%}$ to $\mathbf{9 0 \%}$. Recommendations include improving supervisor handovers and supplier performance reviews. The study highlights lean methodologies’ effectiveness in enhancing supply chain efficiency and profitability. The paper advocates for continuous improvement and the adoption of DMAIC and associated tools to systematically address inefficiencies and enhance overall performance in the supply chain