Dec. 01. 1981
   Established as the SERIM Chemical Industry Co.
Mar. 14. 1983
   Approved the KS Mark Using Recognition of Expandable Polystyrene Foam.
Jul. 01. 1984
   Established as the SERIM Co.,Ltd.
Mar. 20. 1985
   Awarded the Korea Commerce & Industry Minister Prize.
Sep. 27. 1985
   Recognized the UR Flammability Rating 94HF-1, 94HBF.
Mar. 16. 1988
   Awarded the President Saema-eul Medal.
Jul. 26. 1990
   Established the PT SERIM INDONESIA In Jakarta Indonesia.
Dec. 05. 1990
   Recognized the "ǰ-Fum" Lettered (Korea Quality-Assurance Mark)
Sep. 03. 1997
   Acquisitions the Bulim Polymer Co., LTD (Serim Polymer)
Nov. 01. 1997
   Required the ISO-9002 Qualitification.
Mar. 17. 1999
   Awarded the Bronze-Tower Indeustry Medal of President.
Sep. 01. 2000
   Established the SERIM CHINA in Qingdao, China.
Oct. 01. 2000
   Company name changed as SERIM TTC
Apr. 15. 2003
   Established U.S subsidiary, J.WON CORPORATION in California, L.A