This article discusses the impact of regional culture on the corporate culture of a company in the context of international management. It explores how cultural differences can affect organizational goals, individual thoughts, teamwork, and communication. The example of Tesco's failure in Japan due to cultural differences is also discussed. Additionally, the article evaluates the role of expatriation in the global economy, including coordination and control, knowledge transfer, and the challenges faced by expatriates. It emphasizes the importance of cross-cultural training for expatriates and provides an overview of pre-departure and post-departure training methods.