The “Hue – Plastic Smart City in Central Viet Nam” project, after five years, has helped prevent 933.6 tonnes of plastic waste from leaking into the natural environment, with household solid waste sorting-at-source rolled out across all wards and communes of Hue city. The results were highlighted at a seminar reviewing the project’s implementation during the 2021–2026 period, jointly organised on May 23 by the municipal People’s Committee and the World Wide Fund for Nature (WWF) Viet Nam. Launched in 2021 with funding from the Norwegian people through WWF-Norway and WWF-Viet Nam, the project aims to help Hue protect rivers, wetlands and coastal ecosystems from plastic pollution while building the city into a model plastic-reduced urban area in central Viet Nam. The project followed a roadmap built around five key objectives: improving policies and strengthening stakeholder engagement; reducing plastic waste generation; minimising waste leakage during collection and transportation; increasing collection and recycling rates; and improving waste treatment and disposal. Through waste sorting-at-source programmes and intervention activities, more than 750 tonnes of organic waste were collected and turned into compost, while over 4,401 tonnes of waste, including nearly 823 tonnes of plastic waste, were collected from river basins. In education, the plastic-waste-free school model was implemented at 190 schools across Hue, helping spread green living messages to hundreds of thousands of students, teachers and parents. The project also strongly promoted plastic reduction in tourism, with hundreds of tourism and service businesses committing to cutting plastic use. Plastic-free tours and community-based tourism destinations were developed, while waiting stations combined with free drinking water refill points were installed to encourage residents and visitors to limit single-use plastics. At the same time, the project mobilised the participation of more than 100 organisations and associations, along with 331 businesses, in implementing plastic reduction initiatives. Hundreds