As sustainability draws increasing attention due to the COVID-19 pandemic, interest in the green supply chain has likewise substantially increased. The present study contributes deeper insights into the logical integration of the resource-based characteristics that can facilitate the effective transition from traditional to green supply chains while also increasing the effectiveness of existing green supply chains. The proposed model, rooted in the resource-based view (RBV) theory, examines the associations of supply chain connectivity (SCC), supply chain information sharing (SCIS), top management commitment (TMC) and green procurement and logistics acceptance (GPLA) with green supply chain management (GSCM). Analysis of data from employees at 381 manufacturing firms in the United Kingdom confirmed the positive associations of SCC and SCIS with TMC and GPLA, of TMC with GPLA and GSCM and of GPLA with GSCM. The results also confirmed the serial mediation effect of TMC and GPLA on the associations of both SCC and SCIS with GSCM. The study offers several practical insights and theoretical contributions, including a novel GSCM scale. K E Y W O R D S green supply chain management (GSCM), GSCM scale, manufacturing firm, resource-based view (RBV), UK 1 | INTRODUCTION Unsustainable business practices have left the world vulnerable to severe sustainability risks (Jan et al., 2019). Global warming, climate change, the degradation and misuse of resources, increasing instances of human rights abuses, food shortages, hazardous waste generation and chemical accumulation are among the key sustainability risks (Muhammad et al., 2016). Since the turn of the decade, sustainability risks have increased significantly, with scholars noting the depletion of substantial natural resources, which should have been accessible to coming generations (e.g., Dunphy, 2011). Recognising the increasing global sustainability risks, the United Nations announced its Sustainable Development Goals (SDGs) in 2015. Encompassing social, environmental and economic sustainability, the SDGs aim to transform business practices, including supply chain management practices, to create sustainable industries and thereby reduce global sustainability risks (Tseng et al., 2019). This push towards global sustainable industrial transformation has encouraged businesses to upgrade their