Original members were Brazil, Russia, India and China; South Africa joined in 2011.
Recent full members added in 2024–2025 include Egypt, Ethiopia, Iran, Saudi Arabia, United Arab Emirates and Indonesia.
Partner countries such as Nigeria, Vietnam and others support the group’s activities.
The group now accounts for about 49.5 % of the world’s population, 40 % of global economic output and 26 % of worldwide trade.
With eleven full members and ten partner countries, it represents nearly half of the world’s people and a large share of global production and trade.
The upcoming leaders’ meeting in Delhi will focus on building resilience, fostering innovation, deepening cooperation, and promoting sustainable development.
Experts note that adding many new members may complicate reaching agreement because the group lacks a formal rulebook for membership.
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