Geoffrey founded Choson Exchange which has trained 3000 North Koreans in entrepreneurship, economic policy and law over a decade. Over more than a decade, Geoffrey built the leading grassroots-led organization driving economic change in North Korea. His work exposed a generation of Koreans to international practices, and contributed to enterprise reform, Special Economic Zones establishment and legal reforms. His work was written up as a Harvard Business School case study which he teaches to Harvard MBA students. Geoffrey also works in the financial inclusion and technology space with blockchain and AI, leading the Digital Identity business at credit scoring startup Trusting Social and scaling unbanked and underbanked users from 0 to 4M during COVID19. Geoffrey is involved with the World Economic Forum as a Global Future Council member, Consortium on Digital Currency Governance member, and Digital ASEAN taskforce member (payments/data). During his work at Choson Exchange, Geoffrey had two near death experiences. Geoffrey graduated from Yale University and the Wharton School and was an exchange student at Tsinghua University.