This study proposes a holistic strategy for sustainable supplier management by integrating the Purchasing Portfolio Matrix (PPM), Supplier Positioning Matrix (SPM), and Life Cycle Assessment (LCA) within the Indonesian furniture industry. The study aims to enhance supplier segmentation and decision-making by incorporating economic, relational, and environmental dimensions into a unified framework. A case study approach is employed using the Best–Worst Method (BWM) to evaluate 74 suppliers, followed by portfolio analysis and environmental impact assessment. The results indicate that the majority of suppliers are concentrated in low-risk but high-profit categories, highlighting their strategic importance in the supply chain. The LCA results reveal that the production process generates the highest environmental impact, with a single score of 3.48215Pt, while ozone depletion emerges as the most significant impact category (0.58215Pt), followed by aquatic eutrophication potential (0.00796Pt) and bulk waste (0.00138Pt). Importantly, the findings demonstrate that LCA results are integrated into the supplier evaluation process, creating a feedback mechanism that links environmental performance with supplier prioritization and strategic decision-making. This study contributes to the literature by developing an integrated framework that combines supplier segmentation, relationship management, and environmental assessment, while introducing payment accuracy as an additional decision parameter, thereby providing a more comprehensive and practical approach to sustainable supplier management.
Pulansari et al. (Fri,) studied this question.