2003 Promoting Evidence-Based Psychological Services in Korea

In 2003, Dr. Cho established the Tree Group to provide evidence-based treatment in both New York and Korea.
2004 The Tree Group Expansion and Relocation

The Tree Group’s Center for International Psychological Services was expanded and relocated to Daechi-dong in Korea.
International organisations and international schools provided support.
2005 Prolonged Exposure Therapy Workshop with Dr. Edna Foa

In May 2005, the Tree Group held a workshop by Dr. Edna Foa, a worldly renowned psychotherapist in treating PTSD, for professionals in the field of psychology and psychiatry.
2007 DBT Center of Korea was founded and was approved by Dr. Marsha Linehan, the founder of DBT

DBT Center of Korea, the first DBT organization in Asia
2008 ‘The Tree Group Press’ was founded within the umbrella of the Tree Group

Publishing psychotherapy books and psychological fiction books
2008 Dr. Marsha Linehan’s DBT Seminar, hosted by the U.S. Embassy

The DBT Center of Korea (under the umbrella of the Tree Group) invited Dr. Marsha Linehan and initiated the DBT Workshop. With the U.S. Embassy’s support, Dr. Cho hosted an official DBT seminar.
2008 Dialectical Behavior Therapy Workshop with Marsha Linehan

The DBT Center of Korea invited Dr. Marsha Linehan who is one of the most influential authorities in the field of psychology and psychological treatment.
2007-2008 DBT Intensive Training Workshop

“The clinician team at the DBT Center of Korea received DBT Intensive Training Workshop at Behavioral Tech for two years in 2007-2008.”
2015 The Tree Group Co. relocates to Songpa Campus

The Tree Group moved from Gangnam campus to Song campus and rebuilds its space to illustrate our philosophy.
2016 A Psychotherapy Novel “The Seven Room” was published

In 2016, the Tree Group Press published a psychotherapy novel called “the Seven room”.