This paper explores the implications of Industry 4.0 on supply chain transparency and management within the railway industry. Industry 4.0, characterized by disruptive technologies such as IoT, AI, blockchain, and advanced analytics, offers unprecedented opportunities for enhancing transparency, efficiency, and sustainability in railway supply chains. Through a comprehensive review of literature and case studies, this paper identifies key drivers, challenges, and best practices associated with the adoption of Industry 4.0 technologies in railway supply chains. The paper also examines the potential benefits of Industry 4.0 for railway companies, including improved visibility, real-time data analytics, enhanced customer satisfaction, and reduced operational costs. By analyzing case studies of successful Industry 4.0 implementations in the railway industry, the paper provides insights into strategies and recommendations for effectively integrating digital tools into supply chain operations. The findings of this paper contribute to a deeper understanding of how railway companies can leverage Industry 4.0 to address challenges and capitalize on opportunities in an increasingly digitized and interconnected world.