<![CDATA[Purpose – This study describes the structure, value creation, and distribution of added value within the sago value chain involving Indigenous communities, processing groups, MSMEs, traders, and consumers in Yoboi, Simporo, and Babrongko, Jayapura Regency, Papua, from the perspective of Islamic economic justice. It addresses the limitation of conventional value chain analysis, which largely emphasizes financial margins and efficiency but provides limited assessment of whether economic benefits are proportional to actors’ contributions, costs, risks, customary resource rights, and ecological stewardship. Design/Methods/Approach – This study adopts a qualitative descriptive approach, complemented by economic calculations to quantify value creation within the sago value chain. Primary data were collected through field observations and semi-structured interviews with Indigenous community members, processing groups, MSMEs, traders, traditional leaders, and assisting institutions. Economic calculations include dried sago flour equivalent output, Hayami-based value-added analysis, marketing margins, labor income, net operating surplus, and the imputed value of customary resources. These calculations provide supporting evidence for interpreting qualitative findings concerning ‘adl, muamalah transaction patterns, and ecological stewardship in customary sago hamlets. Findings – Added value increases along the sago value chain, with MSMEs capturing the largest value (IDR 1,400,000), followed by Indigenous communities (IDR 850,000), traders (IDR 360,000), and processing groups (IDR 100,000). From an ‘adl perspective, the distribution is partially proportional but institutionally incomplete, as Indigenous communities provide foundational customary resources and ecological stewardship but have limited access to downstream value creation and markets. Research Implications/Limitations – The findings suggest that improving distributive justice requires stronger institutional capacity, processing capabilities, market access, and partnership mechanisms that enable indigenous communities to participate more directly in downstream value creation. The study is limited to three villages and one traced value-chain structure; therefore, broader comparative research is needed. Originality/Value – This study extends conventional value-added analysis by integrating Hayami-based measurement with ‘adl-based proportionality, muamalah transaction patterns, imputed customary resource value, and HIMA-oriented ecological justice. This integration enables value distribution to be assessed not only by financial returns but also in relation to contributions, costs, risks, customary resource rights, market access, and ecological stewardship.]]>
