A highly sought-after ensemble coach and conductor, Han had served from 2010-2014 as conductor for Methodist Girls Secondary and is currently both conductor and instrumental instructor for the National Junior College String Ensemble.
Under his effective mentorship, both schools have achieved Gold and Gold with Honors respectively at the 2011 Singapore Youth Festival Central Judging. Both ensembles were also awarded the Certificate of Distinction at the 2013 Singapore Youth Presentation. The National Junior College String Orchestra tied for Fourth Place with Israel Conservatory String Orchestra at the prestigious 2014 Summa Cum Laude Music Festival in Vienna, Austria.
In addition, Han has been a music instructor with the Singapore National Youth Orchestra since 2008 and has worked with the orchestra, including its training wing, as a Strings conductor.