In the competitive automotive industry, Original Equipment Manufacturer (OEM) companies must optimize supply chains to ensure timely production, cost efficiency, and quality control. By leveraging digital technologies like IoT, blockchain, and cloud-based platforms, OEMs can monitor real-time inventory, track shipments, and improve transparency, reducing errors and delays while fostering trust among partners. Diversifying supplier networks and adopting nearshoring strategies mitigate risks from global disruptions, such as semiconductor shortages, while advanced AI-driven demand forecasting enables informed procurement and inventory decisions. Implementing lean manufacturing and just-in-time (JIT) principles, balanced with safety stock levels, further enhances efficiency. To meet regulatory and consumer demands for sustainability, OEMs are transitioning toward circular supply chains, reintegrating waste into production processes. Collaborative relationships with suppliers, supported by joint R&D and transparent communication, drive innovation and mutual growth. Additionally, resilience planning—using tools like risk assessments, digital twins, and alternative logistics infrastructure—helps OEMs navigate disruptions and build adaptive, efficient, and sustainable supply chains.