I was just given a bottle of Yusan Kaoliang Chiew by a Taiwanese friend, and he says to sip it neat, no ice, etc. He likened it to very good vodka, which I would normally put on the rocks. Haven't tried it yet, though!
It is a spirit made in china from Sweet Peas amongst other ingredients
Su Yusan goes by Susan.
Widaehan yusan - 2003 is rated/received certificates of: South Korea:15
Chanranhan yusan - 2009 1-10 was released on: USA: April 2009
Chanranhan yusan - 2009 1-11 was released on: USA: April 2009
Chanranhan yusan - 2009 1-12 was released on: USA: April 2009
Chanranhan yusan - 2009 1-13 was released on: USA: April 2009
Chanranhan yusan - 2009 1-15 was released on: USA: April 2009
Chanranhan yusan - 2009 1-16 was released on: USA: April 2009
Chanranhan yusan - 2009 1-17 was released on: USA: April 2009
Chanranhan yusan - 2009 1-18 was released on: USA: April 2009
Chanranhan yusan - 2009 1-20 was released on: USA: April 2009