1923 · Renowned oriental medicine scholar Lee "Haengpa" TaeHo founds Haeng Lim Seo Won in Anguk-dong, Seoul.
1962 · Lee Tae Ho's son Lee Sung Mo expands business to Jongro-gu, Eunyi-dong. · Store relocated to Jongro 5-ga. Oriental medicine businesses flourish in the neighborhood thereafter.
1991 · Haeng Lim Medical changes name to "Haeng Lim Seo Won Medical." · Lee Taeho's grandson, Lee Eul Sub, becomes president
1994 · Haeng Lim Seo Won Medical's acupuncture becomes the first in Korea to receive the "Q"-mark distinction, indicating high quality standard.
2001 · Company relocates from Choonwui-dong, Boochun-shi, Gyeonggi-do, to Gwanyang-dong, Anyang-shi, Gyeonggi-do. · First Korean company to apply gamma ray sterilization indicator. (color change: yellow → red).
2006 · Facility expansion to ganam-myeon, Yeoju-gun, Gyeonggi-do. Headquarters established. · Authorization of Gmp Facility and operation system by KFDA.