Since 1991, Chao has been working with La Colifata, which is an NGO made up of a group of patients and ex patients of Hospital Borda, a psychiatric hospital in Buenos Aires, Argentina. Chao uses both a website and a Facebook account to show the work he does with these patients and ex patients. On their Facebook page he explains that the mission of this group is to diminish the stigma that people place on mental illness and to promote the use of services that are meant to help those with mental illnesses.