Thailand’s Travel Mart Plus 2025 in Chiang Mai achieved Carbon Neutral Event status, setting a global benchmark in sustainable tourism. With 669.84 kg of emissions offset, over 1,080 kg of waste diverted, and zero food waste redistributed to local communities, the event showcased eco-innovation and community impact. Thailand reinforced its leadership in responsible tourism, offering a replicable model for hosting large-scale, low-impact global travel events.