This report investigates the impact of oversea mergers and acquisitions (M&A) on value creation for companies, with a specific focus on Chinese firms, particularly within the E-commerce industry. The study explores the evolution of M&A, successful case studies, and the economic values associated with these transactions, considering both national and international contexts. The methodology includes a literature review, research design, data collection, and analysis using methods such as the event study method and accounting methods. The report examines the research problem, purpose, aims, objectives, and research questions to understand the impact of global M&A on creating value. The findings aim to identify how M&A affects business value, particularly in the context of Chinese firms acquiring foreign entities, with a discussion on the results obtained, limitations, and ethical considerations. The report highlights the significance of understanding the financial impacts of M&A on investors, shareholders, and suppliers, emphasizing the importance of analyzing the impact of M&A on companies in terms of value with respect to financial aspects.