China's Premier Wen Jiabao delivers a speech during the opening ceremony of the Boao Forum for Asia Annual Conference 2009 in Boao, Hainan province April 18, 2009.[Xinhua]

China has decided to set up a $10 billion "China-ASEAN Fund on Investment Cooperation" to support infrastructural development in the region, Premier Wen Jiabao said Saturday.

All countries should follow an open approach when expanding investment and allow equal participation of enterprises from other countries, Wen said at the opening ceremony of the Boao Forum for Asia annual conference 2009.