This research investigates cross-cultural business networks between Australian engineering consultants and their Thai customers. A qualitative research study was conducted into business relationships, gathering data on different aspects of actors' perceptions of their relationships. The theoretical foundation of the research was the actors-activities-resources model, a western model developed by members of the Industrial Marketing and Purchasing Group. The results prompted an adaptation to the original model through the addition of two new constructs: network constraint and actor bond negative. A detailed description of the models’ constructs and their antecedents is given, thus contributing to the richness of data on cross-cultural business relationships. The modified model adds to the development of a universal model of business relationships that can form the basis for applications in both western and eastern business cultures.