A strong alliance of developing economies with considerable sway over global governance are the BRICS countries (Brazil, Russia, India, China, and South Africa). The contribution of BRICS to the UN 2030 Agenda for Sustainable Development is examined in this study. These countries collectively make up around 40% of the world's population, more than 25% of its GDP, and a sizeable portion of its resources, making them vital players in the pursuit of the Sustainable Development Goals (SDGs). The study examines how the BRICS countries are working together to address global issues including inequality, poverty alleviation, climate change, and sustainable economic growth. It emphasises programs like the New Development Bank (NDB), which provides funding for sustainable development and infrastructure projects, as well as cooperative efforts in food security, renewable energy, and technological innovation. The report also explores the difficulties that the BRICS countries confront, such as divergent national agendas, socioeconomic divides, and geopolitical conflicts that impede coordinated action. This study examines how BRICS might enhance its position as a global sustainability champion by examining policy frameworks, case studies, and multilateral activities. It ends with suggestions for strengthening collaboration within the BRICS and cultivating alliances with other developing countries in order to successfully implement the 2030 Agenda.