In 1973, Over 100 Science and Engineering field scientists from the Midwest area had their first organization meeting at the Illinois Institute of Technology (IIT). Over 45 years Chicagoland led many activities in the Midwest area, especially, Chicago, Chicago suburb areas. The activities include public Open Seminars, NMSC, Summer Science Camp, Career Development Day, Summer Picnic and Membership Drive, Mentoring Program for High school students, Collaboration meeting with the Korean American Society on Biotech and Pharmaceuticals (KASBP) Illinois chapter, Mentoring with YG, Year-End Party, and Scholarship program for High School Seniors and Undergraduate Students, Midwest conference, UKC, etc.