According to Reuters, LINE Corp will launch roadshows on 10 June in New York and Tokyo for its long-awaited IPO.
Expected to be priced somewhere between $2 billion and $3 billion, the IPO is likely to take place in the autumn.
LINE is owned by South Korea's largest web portal operator, Naver Corp, which has hired Morgan Stanley, Goldman Sachs, JPMorgan and Nomura to manage the offering.
Rumours of Line's IPOs had been circulating for a few years, with an original estimation of $10 billion - although the process was reportedly cancelled in September 2014.
Line has currently 215 million MAUs, mainly from Japan, Taiwan, Thailand, and Indonesia, and remains a powerful force in terms of mobile game marketing, as demonstrated by the 50 million downloads of Disney tie-in LINE Tsum Tsum.