(From left) Yong-Seok Choi, CEO of Dongsung Finetec; Jin-Woo Baek, CEO of Dongsung Chemical; Jung-Ho Baek, Chairman of Dongsung Chemical; François Michel, CEO of GTT; and Thierry Valot, Group Innovation VP of GTT, pose for a photo.

 Dongsung Finetec, a global energy solutions company, is targeting the global market with its low-carbon, high-efficiency LNG carrier insulation material, 'HFO R-PUF'.

Dongsung Finetec announced on September 17 that it unveiled the new product and held a GTT product approval handover ceremony at 'Gastech 2026', a premier global energy exhibition and conference held in Bangkok, Thailand, on September 15.

The newly introduced 'HFO R-PUF' is a cryogenic insulation material for LNG carriers that replaces conventional HFC-based blowing agents with low-global-warming-potential (GWP) HFO-based alternatives. According to DNV's carbon footprint verification, the new product generates 33% lower greenhouse gas emissions than existing products. Thermal conductivity in certain cryogenic operating ranges has also been improved by up to 6%.

'HFO R-PUF' received product approval from GTT, the French LNG cargo containment system engineering firm, in December 2025, successfully completing its technical verification. Dongsung Finetec plans to apply the new product to vessels slated for construction starting in 2027, while expanding adoption discussions across global LNG carrier projects.

Under its 'ECOTECO' brand philosophy—standing for 'Eco Technology for the Fine Globe'—Dongsung Finetec continues to advance the development of low-carbon, high-efficiency technologies. The company plans to steadily expand its eco-friendly product portfolio, including insulation materials for LNG carriers.

"This new product represents a major milestone in expanding Dongsung Finetec's low-carbon, high-efficiency technology across global markets," said Ji-Il Park, Head of the Business Unit at Dongsung Finetec. "Guided by our ECOTECO philosophy, we will continue to introduce differentiated products and technologies, creating new growth opportunities in the global eco-friendly marine equipment market."