IMPACT Arena has emerged as a sustainability leader in Thailand’s MICE industry by aligning its operations with ISO 20121 standards for sustainable event management. Located in Muang Thong Thani, the country’s largest exhibition and convention venue is reducing environmental impact through improved resource efficiency, waste reduction, and stakeholder engagement. Beyond events, IMPACT Arena is advancing a smart city vision for its surrounding district, integrating sustainable infrastructure, digital solutions, and community-driven development to support long-term tourism growth and responsible destination management.