Abstract: A shorter lead-time can capture competitive advantage and increased market shares. The purpose of this study was to explore the supply chain cost structure from a manufacturing perspective. By utilizing the proposed total cost reduction model, a guideline for an incentive program in which the vendor will be motivated to reduce the lead-time for each purchase can be obtained. Accordingly, competitiveness of the supply chain can be further enhanced. To illustrate this cost reduction approach, a case study of manufacturing flexible printed circuit boards with a sensitivity analysis was undertaken. From the results, two findings are obtained: First, purchasing lead-time reduction will result in cost advantages with regard to inventory, transportation, and capacity. Second, there exists a trade-off between transportation and expected capacity costs.