- JAL will introduce biomass-derived stretch film from October 2025.
- The initiative aims to reduce CO2 emissions by about 50 tons per year.
- Mitsui Chemicals uses the mass balance method for biomass incorporation.
- Over 40 product groups have achieved biomass incorporation by June 2025.

Introduction of Biomass-Derived Materials
Mitsui Chemicals is advancing the development of biomass naphtha-derived products under the BePLAYER™ brand to support the biomass conversion of society. Japan Airlines (JAL) has adopted Biomass Evolue™, produced by Prime Polymer, for stretch films used in cargo handling at domestic airports in Japan.
Implementation Timeline
JAL plans to gradually introduce the biomass-derived stretch film starting in October 2025. This initiative is expected to contribute to a reduction of CO2 emissions by approximately 50 tons annually.
Mass Balance Method
The mass balance method involves mixing biomass-derived materials with petroleum-derived materials during processing and distribution. The characteristics of the biomass materials are allocated to part of the product based on the amount introduced, as outlined by the Ministry of the Environment Biomass Plastic Introduction Roadmap.
Impact on Carbon Neutrality
This approach enhances the overall biomass content in society, aiding the transition to a carbon-neutral society. It allows for biomass conversion of materials previously difficult to convert, without altering the physical properties of petroleum-derived plastics and chemicals.
Current Achievements and Future Role
As of June 2025, the Mitsui Chemicals Group has successfully incorporated biomass through the mass balance method in over 40 product groups. Additionally, the mass balance method is crucial for chemical recycling, supporting the development of a circular economy.