Four out of the top ten on the list, including Mr. Wengen, were in the real estate business (riding the real estate boom).

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He was followed by real estate developer Wang Jianlin, machinery maker Liang Wengen, and Internet tycoons Robin Li and Ma Huateng.

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Sany Heavy Equipment International, whose largest investor Liang Wengen ranked no. 1 on the 2011 Forbes China Rich List, went public in Hong Kong in 2009.

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Chinese billionaires with A-share companies include Liang Wengen of Sany Heavy Industry, a key rival of Caterpillar in China, and Zhang Jindong, the chairman of Suning Commercial, a self-styled Amazon and Wal-Mart of China.

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