Abstract
The transition of supply chain management to a circular economy requires strategic alignment through top management commitment and institutional pressures to solve grand challenges. This study investigates how top management commitment along with institutional pressures help to operationalise circular supply chain management (CSCM) and enhance sustainability performance. To address research questions, a survey-based quantitative method on manufacturing companies within developing nations was carried out. The results reveal that the successful application of CSCM and the accomplishment of sustainability performance are positively influenced and mediated by all three types of institutional pressures. Moreover, as a direct driver and a mediator in the adoption process of CSCM, top management commitment is essential to bolstering these institutional influences. This study highlights management's crucial role in fostering circular supply chains and the varying impacts of institutional pressures. It also discusses theoretical and managerial implications, offering practical insights and future research directions.