Kakao Corporation is a South Korean internet conglomerate headquartered in Jeju City. It was formed through the merger of Daum Communications and the original Kakao Inc in 2010. The company was renamed Daum Kakao in 2014. In 2015, it was rebranded once more, reverting simply to Kakao. The KakaoTalk messaging app dominates in South Korea, and after launching in March 2010, the service gained around 90% of domestic market share in 2015. In January 2016, Kakao acquired a 76.4% stake in LOEN Entertainment, a large South Korean entertainment company, for $1.5 billion; it was later rebranded to Kakao M. The company has gained further prominence through KakaoTalk, a free mobile instant messaging application for smartphones, with text and call features. By May 2017, the app had 220 million registered users and 47 million active monthly users. Wikipedia