This study examines the effect of supervisors’ Confucian values on interpersonal trust, interpersonal justice, and information sharing in the context of South Korean workers, using multilevel analysis. We also investigate the moderating roles of blood, regional, and school ties (BRST) among their relationships. A survey was conducted with 46 supervisors and 210 subordinates from South Korean manufacturing companies. Our empirical findings indicated that supervisors’ Confucian values were positively associated with the interpersonal trust, interpersonal justice, and information sharing of subordinates. Contrary to our expectation, the BRST had no significant moderating role in the relationship between supervisors’ Confucian values and interpersonal trust, interpersonal justice, and information sharing of subordinates. Our study contributes to organisational behaviour and psychology by highlighting the significance of societal values such as Confucian values in understanding an organisational member's attitude and behaviour in the East Asian region.