The services of Global Best Practice Group’s expert were retained by the Asian Development Bank as a Business focused Resource Efficiency specialist for developing an Agriculture Rice Commercialization Sector Development Plan for Cambodia to support its Strategy on Agriculture and Water and the Rice Strategy by creating an enabling investment and regulatory environment. Tasks undertaken included: (i) Assessed the status quo of resource utilization by rice-related households/entities, their production capacity, constraints, operational bottlenecks, regulatory issues, and potential for improvement in efficiency and output by developing robust rice value chain initiatives leading to poverty reduction, inclusivity, and achievement of Cambodia Rice Policy goals and objectives. (ii) Proposed business focused climate change adaptation initiatives with regard to irrigation water efficiency, post–harvesting facilities and marketing strategies. (iii) Recommended innovative, financially self-sustaining and environmentally friendly initiatives to be developed as pilot projects on a PPP basis. (iv) Proposed value chain–based resilient agribusiness project investments and capacity building activities for inclusion in the Sector Development Plan with cost estimates and investment phasing.