This report examines the contrasting strategies of lean and agile supply chains, utilizing Company A and Company B as case studies. It defines each strategy, highlighting their distinct approaches to cost reduction, waste minimization (lean), and adaptability to market changes (agile). The report analyzes the suitability of each strategy for the respective companies, considering factors like product variability, customer demand, and lead times. It explores the benefits, such as waste reduction and improved customer relationships for lean, and supply chain cooperation and customer-focused product designs for agile. Conversely, it outlines the drawbacks, including equipment failure and delivery inconsistencies for lean, and limited resource planning and difficulties in measuring for agile. The report then details how Company A could benefit from an agile approach to meet construction industry demands and how Company B could leverage lean principles to manage inventory and costs. Finally, it provides a real-world example of successful strategy implementation and evaluates the outcomes, providing a comprehensive understanding of supply chain management.