Stone Electronic Technology, the major shareholder of Sina.com, plans to list the mainland's hottest Web portal within one year.
Company president Duan Yongji yesterday said a Sina.com initial public offering (IPO) was expected to raise more than US$96.6 million.
Mr Duan said a decision had yet to be made on whether to list Sina.com in the Nasdaq market in the United States or in Hong Kong's pending Growth Enterprise Market.
Sina.com has three times as many registered users as China.com, its closest rival.
China.com raised US$96.6 million early this month in a Nasdaq IPO. Its share price more than tripled on the first day of trading on the back of investor enthusiasm about the mainland's Internet market.
On Wednesday, China.com's shares closed at US$38, compared with its IPO price of US$20.
Mr Duan said Sina.com's shares should be priced no lower than those of China.com.