Why did China and Brazil become BRICS countries?

In 200 1 year, Jim O 'Neill, chief economist of Goldman Sachs, first put forward the concept of "BRIC", especially for investment representatives in emerging markets. "BRIC" refers to the initials of Brazil, Russian, Indian and China. Because this word is very similar to the English word Brick, it is called "BRIC". In 2008 -2009, relevant countries held a series of talks, established a summit mechanism and expanded it into an international political entity. After South Africa joined 20 10, its English word became "BRICS" and was renamed "BRICS". The symbol of the BRICS countries is a circle surrounded by the representative colors of the five national flags, which symbolizes the cooperation and unity of the BRICS countries.