1964: Liljas Plast was founded. Family business from the start.
1979: Kjell Granstrand acquired Liljas Plast.
1987: The subsidiary Polymed Hygienic AB was founded and the cleanroom was built.
2001: BoBe Plastindustri AB, Vansbro was acquired.
2005: Liljas Plast started an own manufacturing company in SuZhou in China named Liljas Plastic LTD.
2008: Liljas Plast acquired Polymega.
2008: Liljas Plast, together with the Jansson family, acquires casting company from Alteams Oy and establishes aluminum diecasting, Comptech in Skillingaryd AB.

2016: New production-unit being built in Hillerstorp, finished March 2016.