Sustainability

Mass Balance Demonstrator for bio-based PET: An example for industry scale-up

PERFORMANCE DAYS, Munich

Sustainability Stage

Tuesday 13th October 2026

14:30 - 15:00 CEST

Biosynthetic materials offer a route to reduce the apparel industry's reliance on fossil-based feedstocks, but limited production capacity and inconsistent accounting for biogenic carbon have slowed brand adoption. This session shares learnings from Fashion for Good's Mass Balance Demonstrator, an initiative applying the mass balance attribution (MBA) chain-of-custody model to produce biomass-attributed PET, working with partners including On, Levi Strauss & Co., BESTSELLER, Indorama Ventures and UPM Biochemicals. Guoda will share findings and learnings from the project to date, covering early progress in producing biomass-attributed materials, building a cradle-to-grave GHG impact model, and shaping a practical blueprint for scaling biomass-attributed PET across the industry.

About the orators

Guoda Treciokaite

Fashion for Good

Materials Analyst

Guoda Treciokaite is a Materials Analyst at Fashion for Good. She leads FFG's work on leather alternatives, biosynthetics and AI-supported hard tech solutions, including managing the Mass Balance Demonstrator project. Her background spans polymers, biodesign and material innovation, alongside studies at Technische Universität Berlin and Trinity College Dublin. Guoda is based in Amsterdam.

Holger John

UPM Biochemicals

Business Development / Sales Manager

Holger is responsible for driving the marketing and sales of UPM Biochemicals' innovative BioGlycols into the automotive industry. His work focuses on reducing the carbon footprint of polyester textiles, polyurethane based materials, coolants and many more automotive applications, and he is eager to assist his customers in every aspect of their sustainability journey.

Sina Theis

ISCC PLUS

System Manager

Sina Theis is a System Manager at ISCC System GmbH, where she contributes to the maintenance and further development of the ISCC PLUS certification scheme and leads the expansion of textile certification. Her work focuses on circular economy topics, including plastic waste, mechanical recycling and plastic-related regulatory developments. Her background spans sustainable supply chains, retail and consulting on green value chain strategies, alongside a Master’s degree in Sustainability Management.

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Exhibitor List October 2026