SusTec co-organized a multi-stakeholder webinar on the upcoming Plastics Treaty Negotiations (INC5.2)
SusTec’s Ricarda Fieber co-organized a global, multi-stakeholder dialogue in preparation for the final round of Plastic Treaty Negotiations (INC5.2), exploring stakeholder priorities and challenges to achieve a meaningful outcome. The perspectives represented include international law, government, science, civil society and business.

In August 2025, UN Member States unite in Geneva to conclude negotiations on a global, legally binding plastics treaty at the second part of the fifth session of the Intergovernmental Negotiating Committee to develop a global legally binding plastics treaty (INC-5.2)
.In preparation, SusTec PhD Candidate Ricarda co-organized and moderated a 90-minute webinar on July 10th as online side-event for the external page WRF25 Conference. The webinar consisted of input presentations and a moderated panel discussion to provide particularly:
- Insights on the current state of the treaty negotiation process
- Stakeholder’s content priorities ahead of INC-5.2)
- Key challenges and solution pathways for achieving a meaningful treaty package at INC5.2
In total, the seven panelists covered different perspectives (International Law, Government, Science, Civil Society, Business), speaking from different global regions (Africa, Europe, South-East Asia, Latin America). The speakers included were:
- International law: Dr. iur., LLM.Eur. Karine Siegwart (Senior Policy Advisor at the Centre for Policy and Law, IUCN; Head of Delegation for IUCN in the Global Plastics Treaty Negotiations)
- Government:
- Amanda Finger (Senior Policy Advisor, Federal Office for the Environment FOEN; Circular Economy Specialist of the Swiss delegation in the Global Plastics Treaty Negotiations)
- Dr. Sam Adu-Kumi (Executive Director, Environment Youth Action Network/EnviroHealth Consult; National and Regional Expert (Chemicals and Waste) for Ghana and Africa; and Lead Negotiator Ghana in the Global Plastics Treaty Negotiations)
- Science: Prof. Dr. Kristian Syberg (Professor at Roskilde University/Head of Section - Environmental Dynamics; Member of the Scientists’ Coalition for an Effective Plastics Treaty)
- Civil Society:
- Marian Frances T. Ledesma (Zero Waste Campaigner at Greenpeace Southeast Asia – Philippines)
- Dalia Fernanda Márquez Añez (Co-Chair for Women's Major Group at UNEP; Executive Director Juventud Unida en Acción; Coordinator of Women's Working Group on ending plastic pollution)
- Business:
- Jodie Roussell (Global Public Affairs Lead, Packaging & Sustainability, Nestlé, and Co-Chair, Business Coalition for a Global Plastics Treaty.
- Ralph Schneider (Senior Manager, Global Product Stewardship, Covestro and Member of the ICCA Plastic Leadership Group)
The recording of the input presentations during the webinar can be watched here: external page Recording: Towards a Meaningful Plastics Treaty: Priorities and Challenges Ahead of INC5.2.