Why 40+ countries want to join BRICS?

BRICS—a coalition of large emerging economies comprised of Brazil, Russia, India, China, and South Africa—reportedly aims to expand nearly 22 years after its inception. Around 40 nations, including Argentina, Iran, Saudi Arabia, and the United Arab Emirates (UAE), have expressed interest in joining the group in order to diversify their economies and strengthen ties with BRICS members. Notably, the group accounts for almost 31.5% of the global Gross Domestic Product (GDP) and functions as a check on Western geopolitical influence.