Manufacturers nowadays confronting great deal of pressure to put efforts to treat their suppliers more fairly as a part of wider corporate social responsibility (CSR) initiatives. Whilst its importance of the buyer’s fairness perception in dealing with their supplier, there are only few studies have investigated its impact on the supply chain relationships and on their performance, and what theoretical frameworks can understand the phenomena is unclear. Based on justice theory and social exchange theory, this study investigates (1) if buying firms’ efforts to treat their suppliers more fairly would pay off and (2) its impact on relational embeddedness and goal congruence. Based on the survey data gathered from 327 Korean manufacturing companies, we tested hypothesised relationship by using structural equation modelling. The results support the positive relationship between the fairness perception and development of relational embeddedness, and its impact on the goal congruence. This study also offers insights into how such efforts benefit buyer firms, which is due to the enhanced relational quality in the buyer–supplier relationship that resulting from the justice perception of buying firms in dealing with their suppliers.