This report provides a comprehensive analysis of Vinamilk, a prominent Vietnamese dairy company. It begins by explaining different types and purposes of public, private, and voluntary sectors, providing examples for each. The report then introduces Vinamilk, discussing its background, size (total capital, revenue, and employees), and scope, including stakeholders and objectives. Furthermore, it examines Vinamilk's organizational structure, functions of key departments, and how these departments link together to achieve set objectives. The analysis extends to the impact of changes in functions on the organizational structure and a critical analysis of complexities when the company expands globally. The report utilizes data from 2020 and 2021 to support its findings, and concludes with a summary of the key insights gained from the analysis.