Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Lan Hongguang)

Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Li Xueren)

Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Lan Hongguang)

Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Wang Ye)

Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Lan Hongguang)

The sixth BRICS summit is held in Fortaleza, Brazil, July 15, 2014. (Xinhua/Li Xueren)

Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Wang Ye)

Chinese President Xi Jinping (2nd R) poses for a group photo with Russian President Vladimir Putin (1st L), Indian Prime Minister Narendra Modi (2nd L), Brazilian President Dilma Rousseff (C), and South African President Jacob Zuma during the sixth BRICS summit in Fortaleza, Brazil, July 15, 2014. (Xinhua/Lan Hongguang)