Empowering Sustainable Project Success in Construction: The Strategic Role of Green HRM and Green Human Capital Through Green Construction Practices and Green Work Climate

In response to increasing demand for environmental sustainability, construction firms are progressively adopting green-oriented management approaches to enhance long-term project success. This study examines the relationship between Green Human Resource Management (GHRM), Green Human Capital (GHC) and Sustainable Project Success (SPS) within the construction sector, with Green Work Climate (GWC) as moderator and Green Construction Practices (GCP) as mediator. Drawing upon the Resource-Based View (RBV), Natural Resource-Based View (NRBV), and Ability-Motivation-Opportunity (AMO) theory, the study explains how green human competencies and HR systems are associated with project sustainability. Data were collected from 436 construction professionals in Bangkok, Thailand, through online questionnaires, and analyzed using SmartPLS 4 and Structural Equation Modeling (SEM) analysis. The findings indicate that GHRM is positively associated with SPS, while GHC demonstrates an indirect relationship with SPS through GCP. The moderating effect of GHC was not supported. These results contribute to sustainable construction management literature by clarifying the mechanisms through which green human resources are converted to sustainability, offering practical implications for construction firms seeking to institutionalize sustainability through structured HR policies and operational practices.