Pyran’s Bio-Based 1,5-Pentanediol Achieves Up to 99% Reduction in GHG Emissions Through an Independent Life Cycle Assessment

MADISON, Wisc., [May 13, 2025] – Pyran, Inc., a renewable chemicals company developing cost-effective, high-performance bio-based materials, today announced the results of an independent cradle-to-gate life cycle assessment (LCA) for its 1,5-pentanediol (1,5 PDO). The study confirms that Pyran’s bio-based PDO reduces greenhouse gas (GHG) emissions by up to 99% compared to petroleum-derived 1,6-hexanediol, marking a significant advancement in sustainable materials innovation.

The study also revealed Pyran’s highly efficient, advantaged process technology delivered an 82% GHG reduction from improved process efficiencies alone, compared to existing petrochemical routes. The analysis further demonstrates Pyran’s 1,5 PDO showed advantages across multiple environmental categories, such as resource use, particulate matter and climate change, reinforcing its strong sustainability profile. The study was conducted in complete alignment with ISO 14040, 14044 and 14067 standards by a leading LCA firm and validated by an expert peer-review panel.

“This third-party-validated life cycle assessment is a powerful endorsement of the science behind our technology and products,” said Kevin Barnett, Pyran co-founder and chief technology officer. “Achieving up to a 99% reduction in greenhouse gas emissions is not only a win for our customers’ efforts to improve the sustainability of their products—it’s a clear signal that renewable chemistry can deliver real impact without compromising performance or scalability.”

The LCA follows another significant milestone for Pyran: the company earned the U.S. Department of Agriculture (USDA) Certified Biobased Product Label for its 1,5 PDO product, which can now display a unique USDA label that highlights that 1,5 PDO is 100% biobased. Third-party verification for a product’s bio-based content is administered through the USDA BioPreferred® Program, which strives to increase the development, purchase, and use of bio-based products.

“These achievements reflect exactly what we’ve been hearing from the market—most recently at the European Coatings Show,” said Mel Luetkens, CEO of Pyran. “Manufacturers are looking for tailored solutions that are sustainable, high-performing and cost-competitive to meet their exacting quality requirements. Pyran is uniquely positioned to deliver on all three fronts.”

Advancing Toward Commercialization

With the LCA and USDA certification complete, Pyran continues its progress toward commercialization. Recent milestones include:

• Completion of FEL 3 Front-end-engineering design (FEED) for commercial scale production;

• Finalizing site selection for its world-scale, U.S.-based commercial production; and

• Full product registration completed for the European market (REACh).

In addition, Pyran previously validated its technology at demonstration scale and is supplying 1,5 PDO to select, pre-approved customers through scaled toll production until commercial production comes online.

To date, Pyran has raised approximately $12.5 million in total investments, allowing the company to continue transforming and scaling its technology into meaningful commercial solutions for several industries. It has produced tons of bio-based products and sells to early customers to qualify in their targeted markets and applications.

Pyran uses intermediates from non-food, renewable feedstocks, such as corn cobs, wood and sugarcane bagasse, to make 1,5 PDO, enhancing the performance of everyday products such as paints, coatings, adhesives and more. The company’s renewable 5-carbon products, including 1,5 PDO, replace expensive and supply-constrained petroleum-based chemicals.

Customers interested in more information about 1,5 PDO should complete the contact form on Pyran’s website (https://pyranco.com/contact/).

Media Contact:

Marina Marich

+1 202-288-6868

marina@dobrocommunications.com

About Pyran, Inc.

Headquartered in Madison, Wisconsin, Pyran, Inc. is a rapidly growing company that uses intermediates from renewable feedstocks, from resources such as corn cobs, wood and sugarcane bagasse, to make 1,5-pentanediol – a critical ingredient that enhances the performance of everyday materials, such as paints, coatings, adhesives and more. The company replaces expensive petroleum-based chemicals with its renewable 5-carbon products, allowing customers to expand the supply of better-performing, environmentally friendly and cost-efficient products. To learn more, visit www.pyranco.com.