Bangkok, Thailand, September 11, 2025 -- Indorama Ventures Public Company Limited, a global sustainable chemical company, is accelerating the textile industry’s transition to lower-carbon materials with its scalable, high-performance bio-based PET fibers and yarns under the deja™ Bio portfolio.
At the upcoming Dornbirn Global Fiber Congress on September 10-12, Claire Mattelet, Global Sustainability Program Head for Indorama Ventures’ Fibers Business, will share the company’s experience in developing a fully certified, low-carbon supply chain at scale.
Her presentation will explore several challenges, such as
- securing reliable sources of renewable feedstocks to produce bio-based PTA and MEG inhouse or sourcing bio-based chemicals such as bio-based MEG from trusted partners
- converting feedstock into PET chips, yarns, and fibers
- and navigating complex certification requirements
As a result, Indorama Ventures is now able to offer customers and brand owners an integrated, fully certified supply chain through mass balance at scale.
In brief
Indorama Ventures says its deja™ Bio portfolio offers bio-based PET fibers and yarns through a certified supply chain using a mass-balance model. The company describes blending renewable feedstocks, including used cooking oil, with fossil-based materials in existing production systems, then allocating renewable content to products through certified methods such as ISCC+. At the Dornbirn Global Fiber Congress, taking place September 10-12, Claire Mattelet, the company’s Fibers Business Global Sustainability Program Head, will discuss supply-chain development and certification challenges. Indorama Ventures says its bio-based PET products are chemically identical to fossil-based counterparts and can be used without changing customer processes. It also says the products match virgin solutions on durability, dyeability and strength, and may help brand owners reduce scope 3 emissions. Its offerings also include PLA-based solutions.
Key takeaways
- Indorama Ventures says its deja™ Bio portfolio includes bio-based PET fibers and yarns.
- The company describes a mass-balance supply chain that uses certified allocation to track renewable content.
- Claire Mattelet will discuss supply-chain development at the Dornbirn Global Fiber Congress.
- The company says its bio-based PET products can work with existing customer processes.
Using a mass-balance approach means that renewable feedstocks, such as used cooking oil, are blended with fossil-based raw materials in existing production systems. The renewable content is then allocated to final products using certified methods like ISCC+, ensuring traceability throughout the value chain and compliance with chain-of-custody requirements.
By leveraging existing infrastructure, coupled with R&D capabilities and proven technologies, Indorama Ventures enables rapid market deployment of bio-based PET fibers and yarns that are chemically identical to their fossil counterparts. This ensures customer processes remain the same, performance metrics such as durability, dyeability, and strength are equal to virgin solutions, and brand owners and converters can speed up qualification lead times and immediately reduce scope 3 emissions to seamlessly upgrade their existing product lines.
Indorama Ventures invites brand owners, manufacturers, and industry partners to explore the deja™ Bio portfolio and join the movement toward a lower-carbon textile industry. The technology is proven, the supply chain is built. For more information on deja Bio product offerings, which not only include bio-PET but also PLA-based solutions, contact enquiry.fibers[at]indorama.net.
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Questions around this news
What does a mass-balance approach mean for bio-based PET?
In a mass-balance system, renewable and fossil-based feedstocks can be processed together in existing production systems. Certified accounting methods track the renewable input and allocate its attributed content to specified products. This means a product can be assigned renewable content without requiring the renewable material to remain physically separate throughout every production step.
What feedstocks and certification does the release describe?
The release gives used cooking oil as an example of a renewable feedstock blended with fossil-based raw materials. It says the renewable content is allocated to final products using certified methods, including ISCC+, to support traceability through the value chain and compliance with chain-of-custody requirements.
How does the release compare bio-based PET fibers with fossil-based fibers?
The release says the bio-based PET fibers and yarns are chemically identical to their fossil-based counterparts and can be made using existing infrastructure. It also says performance measures such as durability, dyeability and strength are equal to virgin solutions, so customer production processes can remain unchanged.
Earlier from Indorama Ventures Public Company Limited
- Indorama Ventures reaches 150 billion PET bottles recycling milestone, advancing circular economy across global operations
- Indorama Ventures and PolySource Partner to Deliver High-Performance Specialty Polymers to Advanced Applications
- Indorama Ventures strengthens talent collaboration with SMU; welcomes interns at Open House experience
- Indorama Ventures provides waste separation teaching manuals to BMA; promoting environmental education in classrooms
- Indorama Ventures takes a further step into the high-potential Indian market through a stake in packaging company EPL
