Ma is exploring a Hong Kong listing, but his main focus appears to be going public on Nasdaq.

FORBES: Chinese Companies To Nasdaq: Sayonara, Zai Jian, Bye Bye

Hong Kong supply-chain magnate William Fung and Hong Kong private-equity chief Mary Ma both serve on Christie's advisory board.

WSJ: Sotheby's to Launch Hong Kong Gallery

Sotheby's confirms Ren has since settled her payment while the case against Ma is still winding its way through Hong Kong's High Court.

CNN: Deadbeat art buyers rise in China

One of the group's 25 business units, Alibaba.com, an e-commerce platform for small businesses, went public on the Hong Kong Stock Exchange in 2007, before Mr. Ma took it private again last year. (The rest of the group's units, including Taobao, Tmall and Alipay, have never gone public.) The financial crisis hurt Alibaba.com, he says, and it needed major changes.

WSJ: Weekend Confidential: Jack Ma of Alibaba

"We thought that this way it would be more romantic, " says Vernon Ma, a spokesman for Times Square, one of Hong Kong's busiest malls.

WSJ: The Year of the Snake Draws Hisses��And Yawns

Top seeds Chen Qi and Ma Lin of China beat Ko Lai-chak and Li Ching of Hong Kong 11-6 11-9 7-11 11-8 8-11 11-5 to take the men's doubles gold in table tennis and keep China on track for another Olympic title sweep in Athens.

CNN: Britain, U.S. share sailing medals