This report analyzes three best practice cases from Singapore; Chinese Taipei; and Thailand. Each case study begins with the featured business’ pain point or opportunity for green transition. Each study then elaborates on the specific implementation of a digital solution for green transition, or how the highlighted business, via collaboration between a large and small enterprise or corporate startup engagement, has optimized green supply chain management and expanded their green business model. Three key suggestions are derived from the case study and analysis: first, to continue to promote innovation via public-private-partnership; second, to deepen collaboration between large and small enterprises, and third, to provide assistance to SMEs in areas such as finance and technology.