No one should die of prolonged thirst – that’s the vision of Lim Chong Tee, co-founder of Wateroam, a startup that designs portable water filtration systems for use in disaster relief operations or rural communities without access to clean water. Their novel systems have since benefitted more than 250,000 people, including communities in Southeast Asia, South America and the Middle East. Chong Tee’s environmental engineering studies at NUS gave him the opportunity to acquire the relevant scientific knowledge, technical know-how and business skills to further his social mission.