This report provides an in-depth analysis of Westpac's sustainability performance. As one of Australia’s 'big four' banks, Westpac has embedded economic, social, and environmental dimensions into its business strategy to ensure sustainable growth. The paper highlights the integration of Corporate Social Responsibility (CSR) practices within daily operations and decision-making processes aimed at fostering long-term stakeholder relationships and promoting sustainable development. Through strategies like the Squashed Tomato Strategy and initiatives such as the Community Consultative Council (CCC) and Sustainable Supply Chain Management Process (SSCM), Westpac aims to mitigate its environmental footprint and enhance operational efficiency. The implementation of these sustainability practices is driven by objectives including achieving competitive advantage, engaging consumers, fostering long-term supplier relationships, and effective risk management. Stakeholders involved in these initiatives include customers, communities, employees, and suppliers, each playing a crucial role in the bank's sustainable growth. Ultimately, Westpac’s commitment to sustainability not only enhances its performance but also bolsters its global reputation.