This study examines relevant relationships among four constructs (e.g., satisfaction, value, trust and relational maintenance) that lead to firm performance in the context of small-medium export relationships. Although the existing literature has mainly focused on the development of proposed or research model, the current study aims at selecting the best model using four competing model, and providing new insights for selected relationships of the model. The findings show that the mediating role of trust is the fundamental key that results in the improvement of firm performance, indicating the strong linkage of the satisfaction-trust-firm performance. Meanwhile, we compare the moderating effects between workers (who involve in B2B relationships) and managers. Interestingly, for the worker group, four linkage (e.g., satisfaction-trust, value-trust, trust-firm performance, and relational maintenance-firm performance) increase, whereas for the manager group, the trust-relational maintenance increases, indicating that there is the difference between the two groups. In line with these observations, we conclude that the consequence of B2B relationships, particularly in the small-medium export context, are depending on the role of workers compared to managers.