NHN Corporation (KRX: 035420) is an Internet content service operator headquartered in Seongnam, South Korea and established in 1998. It operates the Naver portal, which is the most popular Internet portal and search engines in South Korea, and Hangame, the country's number one online game portal. It also has affiliates in Japan, China (Ourgame and nciku) and the United States (ijji). It has the largest market capitalization of KOSDAQ-listed companies.
Source: Wikipedia, "NHN (corporation)", available under the CC-BY-SA License.