CTC logo.png
With Abby Chroman, Tong Zhang and Youn Han
Abby Chroman.png

Abby Chroman

Abby Chroman launches and leads social innovation and social entrepreneurship initiatives at Portland State University in The School of Business. She is an Ashoka U Change Leader, a PSU Futures Fellow, and an enthusiast for positive social and environmental impact across disciplines. Abby is also a mediator at XFORM and In-Accord, where she helps find new possibilities in conflict settings, and she serves on the Board of Advisors for The World Economic Forum's Global Shapers Hub in Portland.

  • LinkedIn

Tong Zhang

Tong is a first-generation American who immigrated from China to the US as a small child. She attended Title I schools throughout her elementary years and credits the dedicated teachers and well-rounded education she received for shaping her career interests and fostering her academic success. Tong is passionate about the MESA mission of engaging underserved students in STEM in her home state of Oregon and beyond. She comes to Oregon MESA with a background in working with organizations to create meaningful and sustained social impact. Previously, she was a founding staff member and COO of Thread, an organization providing wrap-around support to high school students in Baltimore city. Prior to her work in non-profit management, she worked on developing cancer vaccines. She has a Ph.D. in Immunology from Johns Hopkins University and a B.S. in Biochemistry from the University of Washington. 

  • LinkedIn
Youn Han.jpg

Youn Han

Driven by a passion for dismantling oppressive structures and removing barriers to access, Youn has been leading and managing environmental education, youth/community leadership, and social service programs throughout the nation since 2009. Most recently, she was a Community Programs Manager with Portland Audubon and has also worked for the Immigrant and Refugee Community Organization, Seeds of Solidarity, NWRESD Outdoor School, and the Student Conservation Association. Among her professional background, her most inspired and humbling experiences have been collaborating and working directly with colleagues, community members, and youth who rise above their underprivileged circumstances with ferocity, grace, and courage.


Youn is a proud first-generation-Korean-American-Atlantan who loves to travel, putter in the kitchen, and do anything and everything outdoors with her husband and two dogs. She has a Bachelor of Arts degree in International Affairs from the University of Georgia and a Master of Science degree in Environmental Education from Antioch University New England.