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Ahead of the closing of the summit, Jiang Zengwei, chair of the B20 China, handed over the hosting right of the summit to Markus Kerber, director-general of the Federation of German Industries.

"China will work with Namibia to turn their traditional friendship and political mutual trust into more productive cooperation in solar and wind energy, seawater desalination and ocean economy, agriculture, husbandry and fishery," Zhang said during talks with Namibian National Assembly speaker Peter Katjavivi.

NANNING, Sept. 11 (Xinhua) -- Alibaba will boost investment and development in ASEAN, according to founder and chairman Jack Ma on Sunday.

Leaders discussed prominent issues affecting the global economy, including climate change and refugees.

For the world's most populous nation, the Hangzhou summit on Sunday and Monday comes as an important opportunity to show the world that China has what it takes to help navigate world economic recovery.