Green Employee Engagement for Environmental Sustainability and Operational Excellence in the Palm Oil Industry: A Systematic Literature Review

Background: Palm oil industry supports growth but faces environmental scrutiny; green employee engagement’s role in sustainability and operational excellence remains underexplored. Objective: To develop a conceptualization of green employee engagement and to examine the contribution of green employee engagement to environmental sustainability and to the operational performance of palm oil mills, through a Systematic Literature Review (SLR). Methods: PRISMA review of 19 articles (2019–2025), retr