… DC. Thuy is originally from Hanoi, Vietnam and holds a Bachelor’s Degree in Economics and Environmental Policy from Williams College in Massachusetts, USA. Circularity Clean … DC. Thuy is originally from Hanoi, Vietnam and holds a Bachelor’s Degree in Economics and Environmental Policy from Williams College in Massachusetts, USA. Connect with Thuy … DC. Thuy is originally from Hanoi, Vietnam and holds a Bachelor’s Degree in Economics and Environmental Policy from Williams College in Massachusetts, USA. … Thuy Phung …