He attended Kyungnam High School in Busan.
He bats and throws right-handed. In May 2010 Han led his team to the national championship at the 65th Blue Dragon Flag National Championship, allowing only one earned run in 10 innings pitched as the team"s closer. Han was summoned to close the semifinal game against Chinese Taipei in the eighth inning.
Notable international appearances
Han made himself eligible for the 2012 KBO Draft and was selected as the second overall pick in the draft by the Nexen Heroes.
As a sidearm pitcher Han combines a fastball that averages early 90 mph with a curveball and a circle changeup.
Han threw a no-hitter on June 9, 2011, allowing two walks and striking out 17 batters with 104 pitches against Gaesung High School in the Gyeongsang regional preliminary league for the 65th Golden Lion Flag National Championship where he racked up three consecutive complete game shutout wins with 39 strikeouts in 27 innings pitched. He earned a win, hurling three innings and allowing one unearned run in South of Korea"s 4-3 victory to Chinese Taipei.
In August 2011 Han was selected as a member of the South Korean U-18 national team for the Asian Junior Baseball Championship held in Yokohama, Japan.