PHNOM PENH -- Four years after an unplanned opportunity switched their focus to logistics, founders of Vietnam startup Abivin, Long Pham and Cassie Nguyen, are looking to expand even further across Southeast Asia. The pair won the $1 million top prize at the 2019 Startup World Cup in Silicon Valley last month for their AI-powered route optimization and transport management platform, which is aimed at improving Vietnam's notoriously inefficient logistics sector. Now Pham and Nguyen say they have had queries from multiple potential clients, and that they are setting their sights on further regional expansion.