The 30-year-old had joined Thurgau in 2013 from the Austrian team Linz and was able to score 32 goals and 52 assists in 86 games for Hockey Thurgau in the past two seasons.
With Irmen leaving to take his chance on a higher level, HCT is now looking to find another player for the upcoming season to form the import duo with American center Derek Damon. (lcu)