By Martin Mou

Netease Inc.'s shares jumped 8.1% in their Hong Kong debut after the Chinese mobile-gaming company completed one of Asia's biggest offerings so far this year.

Shares of the Tencent Holdings competitor opened at 133.00 Hong Kong dollars (US$17.16) in early Thursday trade compared with the initial public offering price of HK$123.00.

The stock was last at HK$134.80.

Netease raised HK$20.93 billion in net proceeds from the secondary listing, which could rise by another HK$3.16 billion if it exercises the over-allotment option.

Shares of Netease in the U.S., where the company has been listed since 2000, have risen 39% in the year to date, giving the company a market capitalization of nearly US$53 billion.

The secondary listing in Hong Kong comes as a number of Chinese companies mull listings closer to their home markets amid increasing scrutiny of Chinese businesses listed in the U.S.

The U.S. Senate in May passed a bill that could kick Chinese companies off U.S. stock exchanges unless American authorities can inspect their audits.

Nasdaq-listed JD.com Inc., a rival to Alibaba Group Holding, is set to debut in Hong Kong on June 18. The e-commerce giant is planning to raise up to HK$31.39 billion. 



  Write to Martin Mou at martin.mou@wsj.com