Vuong, 55, replaces Le Thi Thu Thuy, who had held the post since late 2021, VinFast said in a statement. Thuy, a finance expert, will serve as chairwoman and lead engagement with external stakeholders. Vuong, also the founder and chairman of Vingroup - Vietnam's biggest conglomerate and VinFast's parent company - will directly oversee the EV maker's operations, including global production, sales and marketing, the company said.