Emerging powers to 'play bigger role' in world affairs

China and its three sister BRIC nations - Brazil, Russia and India - will "participate more fully" in the decision-making of world affairs, said the Brazilian ambassador to China, commenting on the first-ever summit of the four countries held yesterday in Russia's Yekaterinburg.

"A fundamental thing is that we are witnessing some changes in the world system," Clodonaldo Hugueney said on Thursday.

The four countries are the most significant emerging powers in the world, according to many international experts. The BRIC nations now are "partners in all important decision-making in all issues", Hugueney said.