In keeping with the tradition of featuring high-calibre speakers who reflect the multidisciplinary nature of the field, MACRO 2026 will showcase leading experts presenting the latest developments in their respective areas, all aligned with the overarching theme of sustainability. The program will feature a dedicated session on the commercialization of research, involving leading figures from the polymer industry. Additionally, a cross-sectoral dialogue will engage policymakers and stakeholders from sectors such as recycling, economics, and the social sciences, providing broader perspectives on sustainability and societal impact. MACRO 2026 is committed to organizing a diverse and inclusive meeting. Particular emphasis will be placed on encouraging participation and visibility of female scientists, individuals from underrepresented socioeconomic backgrounds, and ensuring racial and gender diversity in both the planning and scientific program.