This report provides a comprehensive analysis of Primark's competitive strategy within the UK fashion retail market. It begins with a company background and then applies PESTLE analysis to assess the macro-environmental factors influencing Primark, including political, economic, social, technological, environmental, and legal aspects, with specific attention to the impact of Brexit. A SWOT analysis evaluates Primark's internal strengths and weaknesses, alongside external opportunities and threats. Finally, the report utilizes Porter's Five Forces model to examine the competitive intensity within the industry, considering the bargaining power of buyers and suppliers, the threat of new entrants and substitutes, and competitive rivalry. The analysis highlights Primark's cost leadership strategy, supply chain management, and digital presence. The report concludes with a summary of key findings and recommendations, providing a strategic overview of Primark's position in the competitive landscape.