The purpose of this study is to investigate whether blending foreign workers and local employees in the workplace will influence the helping behaviors among co-workers. The sample was made up of 163 supervisors among manufacturing industry. The results indicated that the blending work groups had lower level of helping behaviors then the groups composed of local employees and the level of social interaction moderated the relationship between them. Supporting the hypothesis, work groups with lower level of social interaction had lower level of helping behaviors then the groups with higher level of social interaction. Implications and limitations of these results were discussed. Suggestions for future research were provided.