Strategy 2030 underscores the commitment of the Asian Development Bank (ADB) to support state-owned enterprise (SOE) reform in developing member countries (DMCs). This guidance note provides an overview of SOEs and explains the significance of reforms in implementing ADB's corporate strategy for its operations in DMCs. It discusses the requirements for SOE reform and provides guidance on challenges that need to be addressed and areas to focus on relative to different sector needs. Designed to help ADB staff in their work with SOEs, this guidance note is also a useful resource for officials from DMCs, and SOE board and management members.