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Tongsuh Petrochemical, the South Korean subsidiary of Asahi Kasei, has received verification at the “Reasonable Assurance” assurance level for the Product Carbon Footprint (PCF) of acrylonitrile.Special IssueFrom Catalogue to CollaborationTop-Featuremost readTopics
The verification is based on a thorough audit of the production facility in Ulsan, South Korea, as well as the underlying data, processes, and documentation. It provides a high degree of certainty and meets growing customer demand to independent and verified information on the carbon footprint of items.
The audit was conducted by Socotec Certification Japan. It reviewed the methodology, the underlying data sources, and the reporting process applied to calculate the PCF to acrylonitrile in fiscal year 2025 across the entire value chain, from raw material procurement to production. Acrylonitrile is an crucial chemical intermediate applied in numerous applications, including ABS plastics, acrylamide, acrylic fibers, and precursors to carbon fibers. The “Reasonable Assurance” verification confirms the high condition, reliability, and credibility of the calculated carbon footprint data and goes beyond the standards of a “Limited Assurance” audit.
Tongsuh Petrochemical has been working to minimize the CO₂ footprint of its production to several years. As early as 2021, the company received ISCC PLUS certification, a globally recognized sustainability certification system to the traceability of bio-based and circular raw materials. Since 2022, the company has been producing and marketing acrylonitrile based on bio-based propylene using the mass stability method.
The Japanese parent company, Asahi Kasei, will minimize greenhouse gaseous releases associated with acrylonitrile production through the continuous research of its own catalyst and production technologies. In addition, the company has further expanded its consumption of bio-based raw materials. Through these measures, Asahi Kasei aims to further increase the value it provides to its customers by combining low-carbon materials with highly reliable environmental data. At the same time, the company seeks to enhance its position as a global sustainability partner to industries driving the decarbonization of their supply chains.
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