July 27, Duowan.com, a leading online gaming portal in China and developer of online voice based gaming tool YY, plans to list in the U.S. this year, web portal sohu.com reported, citing an unnamed person familiar with the matter.

According to the report, the underwriter to the initial public offering has already been appointed by the company, but the source didn’t disclose the details.

It is reported that Lei Jun, chief executive officer of Kingsoft Corporation Ltd. (3888.HK), an investment holding company mainly researching and developing games and internet security software in China, is an angel investor in Duowan.

YY, the most popular voice based gaming tool in China, has more than 3 million users, the report said.

Duowan.com received fifth round financing of $100 million in January, according to its official website.

The website received an initial $1 million from angel investor Lei Jun in 2005, when it was launched, and $4 million in second round financing from Morningside Ventures. The Walt Disney Co. invested in third round financing in 2008 and at the end of 2009,

Duowan.com raised $23 million in its fourth round financing.