This report provides a comprehensive analysis of AstraZeneca's competitive environment within the UK pharmaceutical industry. It begins with an introduction to business management and its strategic application, followed by an overview of the UK pharmaceutical industry's significance. The report delves into strategic group theory, analyzing the performance differences among industry groups, and applies Porter's Five Forces to assess the competitive landscape, particularly in the context of the post-COVID-19 era. The report then examines AstraZeneca's competitive environment through a PESTEL analysis, exploring political, economic, social, and technological factors. The analysis highlights key challenges and opportunities for AstraZeneca, considering the impact of government regulations, economic conditions, social trends, and technological advancements. The report concludes by summarizing the key findings and implications for AstraZeneca's strategic management.