The 20-year-old needs only to pass a medical to complete a move to the K-League powerhouse, leaving Heart potentially short in the centre of defence
The seven-time Korean champions have been looking to fill the defensive void left by the departure of Australia international and 2010 AFC Asian Football of the Year Sasa Ognenovski, who moved to Qatar's Umm Salal.
A transfer deal has been agreed for Australian Institute of Sport graduate Hamill, 20, who joined Melbourne Heart in April 2010.
The Young Socceroo, who made 34 appearances for the A-League club, became the youngest player to feature for the Heart when he debuted at 17 years and 321 days old in their 1-0 defeat at home to Central Coast Mariners on August 5, 2010.
With fellow defender Curtis Good expected to finalise a move to English Premier League giants Newcastle United in the coming weeks, Melbourne Heart will likely delve into the transfer market to find re-inforcements.