HONG KONG, May 29 (Xinhua) -- It is up to companies to decide where to be listed, Chief Executive of Hong Kong Exchanges and Clearing Limited (HKEX) Charles Li Xiaojia said on Wednesday.

Media reports here have said Alibaba Group Holding Limited is mulling to raise 20 billion U.S. dollars through a second listing in Hong Kong.

Responding to the press, Li said it is up to the companies to decide where to be listed, in Shanghai, in Shenzhen or in Hong Kong.

"Wherever they go, we welcome them back home," Li said.

In 2014, Alibaba Group Holding Limited listed its shares on the New York Stock Exchange.