This MBA research thesis explores how Internet of Things (IoT) technologies can improve supply chain transparency across diverse sectors. Through a systematic literature review of 36 peer-reviewed articles and five global case studies (Walmart, Maersk, Volvo, ZhongAn, and India Pharma), the study develops a three-layer conceptual framework and a strategic roadmap for small and medium-sized enterprises (SMEs) in Canada. The work is unpublished, follows APA 7th edition citation style, and does not fall under any NDA or embargo.