This study aims to examine the effects of the use of blockchain technology in production on the motivation to switch to a circular economy (CE). Additionally, the study aims to assess the significance of blockchain technology's impacts on businesses, with a focus on CE initiatives. In this context, thirty-five managers from seven companies in Turkey's automotive subindustry were interviewed, and the criteria were evaluated by seven expert groups. Considering the presence of different groups and high uncertainty, the Q-Rung Orthopair fuzzy set was used. The study findings reveal that the primary factors driving circular economy motivation are “waste management,” “information sharing and enhanced cooperation among supply chain stakeholders,” and “operating costs,” in that order. The article explores blockchain as a promising technology to facilitate the circular economy process. This study is expected to enrich the circular economy literature and be a road map for automotive supplier industry manufacturers in developing countries.