The total concept of lean production is to enhance the business environment by optimizing processes and eliminating waste. This can help cut costs while still delivering high-quality products customers want. Lean production affects inventory levels in companies by reducing lead times and operating costs to meet demand. Design for manufacture copes with international demands in the supply chain by using air freight, locating activities close together, and facilitating transactions. Lean production cannot boost productivity in the Philippines due to a lack of high technology, poor infrastructure, and the need for technology to meet lean production requirements. Lean production requires close relationships with suppliers and customers to prepare for inevitable challenges through communication and information sharing.