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.[citation needed] It also has affiliates in Japan. It had the largest market capitalization of KOSDAQ-listed companies however was transferred to Kospi market on November 2008.