VinFast CEO Le Thi Thu Thuy (left) speaks to VinGroup founder and Chairman Pham Nhat Vuong.Kevin Krolicki/Reuters Vietnam EV maker VinFast's shares jumped over 200% on its Tuesday debut on Nasdaq. The share surge boosted the fortune of major shareholder Pham Nhat Vuong. Vuong is now worth $44.3 billion — that's $39 billion more than what he was worth just a day prior. Vietnam's richest person, Pham Nhat Vuong, got eightfold richer on Tuesday after shares of his electric vehicle company soared on its Nasdaq debut.The 55-year-old is now worth $44.3 billion — that's $39 billion more than his net worth just a day prior, according to the Bloomberg Billionaires Index.